Intuition has never been more devalued than in our rational-scientific age.
At a wine bar in Corsica, I ordered a glass of Vermentino and shared some low-key wine talk with the sommelier who brought it to me. After a time, I ordered another glass, and we spoke again. I like testing my intuitions, so I said, at point blank, “You write poetry, don’t you?” The chap, taken aback by my sorcery, confirmed that he did indeed write poetry, and even that some of his poems had been published.
An intuition is a disposition to believe elaborated without hard evidence or conscious deliberation. I say “disposition to believe” rather than “belief” because an intuition is usually held with less certainty or firmness than a belief; and “believe” rather than “know” because an intuition is not justified in the normal sense, and not necessarily true or accurate.
It is not just that intuition is arrived at without hard evidence or conscious deliberation, but that these can impede it. “I am not absentminded” wrote the polymath GK Chesterton, “it is presence of mind that makes me unaware of everything else.”
Intuition versus instinct
Intuition is often confused with instinct. Instinct is not a sense about something, but a more or less strong tendency towards a particular behaviour that is innate and common to the species. “Anna stepped back, intuiting that the dog would follow its instinct and attack.”
Although instincts are ordinarily associated with animals, human beings also have quite a few, even if they are, or can be, strongly modified by culture, temperament, and experience. Examples of human instincts include any number of phobias (fear of heights, fear of spiders…), territoriality, tribal loyalty, and the urge to procreate and rear their young. These instincts are often distorted or sublimed: for example, tribal loyalty may find an outlet in sport, and the urge to procreate may take the more rarefied form of romantic love.
Aristotle says in the Rhetoric that human beings have an instinct for truth, and in the Poetics that we have an instinct for rhythm and harmony.
The psychology of intuition
If intuition is not instinct, how does it operate?
An intuition involves a coming together of facts, concepts, experiences, thoughts, and feelings that are loosely linked but too disparate and peripheral for deliberate or rational processing. As this reflection is sub- or semi-conscious and the workings are hidden, an intuition appears to arise ex nihilo, out of nothing and nowhere, and cannot, or at least not readily, be justified.
What makes an intuition so hard to support and argue for is that it is founded less on arguments and evidence than on the interconnection of things. It hangs, delicately, intricately, and invisibly, like a spider’s web.
The surfacing of an intuition, which can also occur in dream or meditation, is often mingled with a concordant feeling such as joy or fear, or simple pride and pleasure at the supreme cognitive and human achievement that an intuition represents.
How to invite intuition
If this is how intuition works, then we can invite intuition by expanding the range of our experiences, and by tearing down the barriers, such as biases, fears, and inhibitions, that are preventing them from coalescing.
We should also give ourself more time and space for free association. My own intuitive faculty is sharpest when walking, showering, travelling, or otherwise daydreaming, and when I am well rested.
Clearly, the more we know, the more we can intuit, and there is no such thing as wasted knowledge.
Finally, it would help if we could simply acknowledge the place and power of intuition. We have micro-intuitions all the time, about what to eat, what to wear, what road to take, whom to talk to, what to say, how to respond, and so on. I call them micro-intuitions because they rely on a great number of subtle variables, and escape, or largely escape, conscious processing. But what about the macro-intuitions?
Never in the history of humanity has the intuitive or mystic faculty been more neglected or devalued than in our rational-scientific age.
The two years that he spent on Lesbos were perhaps Aristotle’s happiest. The island’s flora and fauna informed his theory of the form, which in turn informed his entire physics and metaphysics.
Aristotle remained at Plato’s Academy for nearly twenty years, only leaving after Plato’s death in 347. The reasons for his departure are unclear: he may have felt slighted at being passed over for the scholarchship of the Academy in favour of Plato’s nephew, Speussipus; or he may have fled, possibly even before Plato’s death, for fear of the growing anti-Macedonian feeling. In 351, the orator Demosthenes had delivered his First Philippic denouncing Philip II’s imperial ambitions, and in 348, the year before Plato’s death, Philip had razed Athenian ally Olynthus to the ground.
Then in his thirty-seventh year, Aristotle travelled with fellow Platonist Xenocrates of Chalcedon to Assos (in the Troad, Asia Minor) to join the court of Hermias of Atarneus, who had studied at the Academy. Aristotle may or may not have gone to Assos as an ambassador of Philip, who wished to have Hermias for an ally. In either case, it seems that he exerted a moderating influence on Hermias, who softened his harsh tyrannical rule—enabling him, in short succession, to win over neighbouring peoples and expand his territory.
In 344, Hermias was captured by a mercenary in the service of Artaxerxes III of Persia and tortured for information about the invasion plans of his ally Philip. But Hermias held his silence, his dying words being that he had done nothing shameful or unworthy of philosophy. Aristotle honoured the memory of his perfect friend with a statue at Delphi and a still extant hymn to virtue. At around this time, he married Hermias’ niece and adoptive daughter, Pythias, who helped him in his work and bore him a daughter, also Pythias.
After the death of Hermias, Aristotle and his student Tyrtamus crossed over to Lesbos to research the flora and fauna of the island and its remarkable lagoon, then known as the Pyrrha lagoon, now known as the Gulf of Kalloni. Tyrtamus went down in history as Theophrastus [‘Divinely-speaking’], the nickname given to him by Aristotle. Supposedly, the more empirical Theophrastus concentrated on the flora while the more speculative Aristotle concentrated on the fauna, so that the one is remembered as the father of botany and the other as the father of zoology. In fact, Theophrastus also wrote on animals, and Aristotle on plants, but these works have been lost, as have almost all of Theophrastus’ wide-ranging works.
Lesbos and the inland Gulf of Kalloni (left of the picture)
Aristotle’s Biological Works
Aristotle’s biological works represent the first systematic study of biology and reveal a great deal about the man and his method. These works are usually ignored, though they make up a quarter of his extant corpus, and were revered by naturalists such as Georges Cuvier and Charles Darwin—who, in the year of his death, 1882, wrote to William Ogle that ‘although Linnaeus and Cuvier have been my two gods … they were mere schoolboys to old Aristotle.’
Although Linnaeus and Cuvier have been my two gods … they were mere schoolboys to old Aristotle. —Charles Darwin
Aristotle accompanied his History of Animals (a somewhat misleading title, cf. ‘natural history’) with a now lost book of anatomical drawings. His other biological writings are the Parts of Animals, Movement of Animals, Progression of Animals, and Generation of Animals, as well as On the Soul and seven shorter works collectively known as the Parva Naturalia.
On the Soul may seem out of place, until one remembers that the very word ‘animal’ [anima] means ‘having breath’ or ‘having soul’. The soul, says Aristotle, is the principle of life, and the knowledge of it contributes greatly to our understanding of nature and truth in general. On the Soul includes a detailed discussion of the senses and established our notion of the ‘five senses’, with Aristotle explicitly stating that ‘there is no sixth sense in addition to the five enumerated’.
On the Soul includes a detailed discussion of the senses and established our notion of the ‘five senses’, with Aristotle explicitly stating that ‘there is no sixth sense in addition to the five enumerated’.
In his biological works, Aristotle outlines more than five hundred species, some in more detail than others. He describes the chambered stomachs of ruminants, the social organization of bees, and the embryological development of a chick. He notices that some sharks are viviparous, and that whales and dolphins differ from other fish in breathing air and suckling their young. He infers that brood size decreases with body mass, whereas gestation period, and overall lifespan, increases. In a playful by the way, he remarks that ‘after drinking wine, the Indian parrot becomes more saucy than ever’.
For centuries, some of Aristotle’s accounts seemed too fanciful to be true, for instance, that the young of a dogfish grow inside their mother’s body, that the male of the river catfish guards the eggs for forty or fifty days after the female has left, or that male octopuses have a sperm-transferring tentacle that sometimes snaps off during mating. Each of these wonders of the world had to wait until the nineteenth century to be confirmed.
Unlike Plato, Aristotle privileged observation over speculation. Like our scientists, he began with a systematic gathering of data, from which he attempted to infer explanations and make predictions. He carried out dissections and even rudimentary experiments such as cutting out the heart of a turtle to discover that it could still move its limbs for a surprisingly long time.
However, he did not carry out anything like modern case-control studies, and relied uncritically on the lay testimony of beekeepers, fishermen, travellers, and the like. His lack of rigour led to some embarrassing errors, such as the claim that lions copulate back-to-back, while bears adopt the missionary position and hedgehogs stand on their hind legs to face each other. Or the claim that the female of several species has fewer teeth than the male. Among these species, he included humans, when he could simply have looked into Pythias’ mouth (wife or daughter).
Aristotle’s lack of rigour led to some embarrassing errors, such as the claim that lions copulate back-to-back, while bears adopt the missionary position and hedgehogs stand on their hind legs to face each other.
Biology as Philosophy
Aristotle was not simply doing biology for the sake of biology, but for the sake of philosophy. Like Plato, he was searching for universals, but this time from the ground up. ‘We should’ he said, ‘venture on the study of every kind of animal without distaste; for each and all will reveal to us something natural and something beautiful.’
An animal gives birth to the same animal because of its form [eidos] or ordering pattern—an idea that resonates with modern genetics. The male supplies the form, which is also the soul, in his semen, while the female provides the material in her menses. When the semen meets the menses, they congeal into an egg or embryo ‘like fig juice which curdles milk’. If the semen fails to ‘master the menses’, a female is born. The soul is not superadded or even supervenient, but corresponds to the animal’s ordering pattern and dynamic processes. Aristotle’s interest in biology informs his theory of the form, which in turn informs his entire physics and metaphysics.
Aristotle’s interest in biology informs his theory of the form, which in turn informs his entire physics and metaphysics.
All beings, from minerals to plants and animals, have a form, the potential of which determines their position on the eleven-rung scala naturae,or great chain of being. The Church adapted the concept of a great chain of being, which later helped to justify slavery, colonization, and evangelization. Plants have a vegetative soul, capable of growth and reproduction. Animals, as well as a vegetative soul, have a sensitive soul, capable of sensation and movement, and hence of desire and imagination. Humans, uniquely, also have a rational soul, capable of thought and reflection. Contra Plato, the soul inheres in the organism, and dies with it—except for the rational soul, which, being a part of God, is immortal. Thought cannot die, since, unlike all else, it is not the function of a particular organ—the brain and the lungs being, in Aristotle’s view, mere radiators for the heart, which is the site of the internal fire and the seat of intelligence, motion, and sensation.
The Great Chain of Being. From Retorica Christiana, by Didacus Valades (1579).
Although he held that all beings have a form, and that the form is injected by the male (a male being defined as ‘an animal that breeds inside another’), Aristotle also believed that many lower animals spontaneously generate: that eels grow out of mud, and insect maggots from putrefying flesh, even though Homer had said otherwise—when, in Iliad XIX, Achilles fears that flies will ‘breed worms’ in the corpse of Patroclus. To be fair to Aristotle, he had observed that eels have no gonads, and could hardly have guessed that they only develop them in the course of their epic migration to the Sargasso Sea. The earliest challenge to spontaneous generation came as late as 1668, when Francesco Redi covered jars of rotting flesh with gauze and found that only the controls, that is, the uncovered jars, grew maggots.
Aristotle was not a Darwinist nor even a Creationist, but an eternalist who believed that the plants and animals before him had always existed and would always exist. One argument that he gives for eternalism is that, if motion had a beginning, this beginning must itself have resulted from a movement, which is a paradox. Although he privileged observation over theory, his eternalism, albeit logically held, blinded him to the significance of the petrified forest of Lesbos, which would have confronted him with fossilized trees from millions of years ago.
Such are the main lines of Aristotle’s biology and associated philosophy. Many of his inferences have not stood the test of time. Salacious animals do not age more quickly than continent ones. Hair is not grown at the expense of semen, even if women and eunuchs don’t grow bald. And it is not because they lack fatness that bloodless animals are shorter lived than sanguineous ones.
But was the beginning of science not bound to look like this? And is it not remarkable that we today can still read its record?
Aristotle spent no more than two years on Lesbos. In 343, King Philip commissioned him to tutor his son Alexander, who was then around thirteen years old, promising in return to rebuild his native Stageira and repatriate its former citizens.
A biography of the most influential of Western philosophers, known for centuries as The Master of Those Who Know, The First Teacher, or simply, The Teacher.
Aristotle was born in 384 BCE in Stageira, on the Chalcidice peninsula of north-eastern Greece. In 348, Philip II of Macedon occupied and destroyed the city, but then had it rebuilt and repopulated in honour of Aristotle, who had been his childhood friend, and whom he had appointed to tutor his son, Alexander, the future King of the Oikouménē, or Known World.
The Stagirite’s father, Nicomachus, served as physician to Philip’s father, Amyntas III of Macedon, and descended, purportedly, from the god of medicine, Asclepius—as did his mother, Phæstis. With the healing arts running so thickly in his blood, Aristotle would have been expected to follow in his father’s footsteps. Certainly, his medical background, and the empiricism of physicians such as Hippocrates (d. c. 370 BCE), informed his method and philosophy.
Aristotle had a sister, Arimneste, and a brother, Arimnestus. The symmetry of these names, which both mean ‘Greatly remembered’ or ‘Everlasting memory’, suggests that Aristotle may have been the youngest of the three siblings.
At the age of about thirteen, Aristotle lost both his parents, and became the ward of Proxenus of Atarneus (in Æolis, Asia Minor), who rounded whatever medical training he had received from his late father.
Arimneste married Proxenus, and from this union came a daughter, Hero, and a son, Nicanor. Hero in turn had a son, the historian Callisthenes of Olynthus, great nephew to Aristotle.
Aristotle at the Academy
In 367, Proxenus sent the seventeen-year-old Aristotle to study at Plato’s Academy, which had by then become a pre-eminent centre of learning. If Diogenes Laertius is to be believed, the grown-up Aristotle had small eyes and slender calves, dressed fashionably, and spoke with a lisp.
Aristotle remained at the Academy for nearly twenty years, only leaving after Plato’s death in 347. The reasons for his departure are unclear: he may have felt slighted at being passed over for the scholarchship of the Academy in favour of Plato’s nephew, Speussipus; or he may have fled, possibly even before Plato’s death, for fear of the growing anti-Macedonian feeling. In 351, the orator Demosthenes had delivered his First Philippic denouncing Philip II’s imperial ambitions, and in 348, the year before Plato’s death, Philip had razed Athenian ally Olynthus to the ground.
Aristotle in Assos
Then in his thirty-seventh year, Aristotle travelled with fellow Platonist Xenocrates of Chalcedon to Assos (in the Troad, Asia Minor) to join the court of Hermias of Atarneus, who had studied at the Academy. Aristotle may or may not have gone to Assos as an ambassador of Philip, who wished to have Hermias for an ally. In either case, it seems that he exerted a moderating influence on Hermias, who softened his harsh tyrannical rule—enabling him, in short succession, to win over neighbouring peoples and expand his territory.
In 344, Hermias was captured by a mercenary in the service of Artaxerxes III of Persia and tortured for information about the invasion plans of his ally Philip. But Hermias held his silence, his dying words being that he had done nothing shameful or unworthy of philosophy. Aristotle honoured the memory of his perfect friend with a statue at Delphi and a still extant hymn to virtue.
At around this time, he married Hermias’ niece and adoptive daughter, Pythias, who helped him in his work and bore him a daughter, also Pythias.
Aristotle in Lesbos
After the death of Hermias, Aristotle and his student Tyrtamus crossed over to Lesbos to research the flora and fauna of the island and its remarkable lagoon, then known as the Pyrrha lagoon, now known as the Gulf of Kalloni.
Tyrtamus went down in history as Theophrastus [‘Divinely-speaking’], the nickname given to him by Aristotle. Supposedly, the more empirical Theophrastus concentrated on the flora while the more speculative Aristotle concentrated on the fauna, so that the one is remembered as the father of botany and the other as the father of zoology. In fact, Theophrastus also wrote on animals, and Aristotle on plants, but these works have been lost, as have almost all of Theophrastus’ wide-ranging works.
Aristotle was not simply doing biology for the sake of biology, but for the sake of philosophy. Like Plato, he was searching for universals, but this time from the ground up. ‘We should’ he said, ‘venture on the study of every kind of animal without distaste; for each and all will reveal to us something natural and something beautiful.’
Tutor to Alexander
Aristotle spent no more than two years on Lesbos.
In 343, King Philip commissioned him to tutor his son Alexander, who was then around thirteen years old, promising in return to rebuild his native Stageira and repatriate its former citizens. In the Temple of the Nymphs at Mieza, near the Macedonian capital of Pela, Aristotle taught not only Alexander but also his close friend or lover Hephæstion, and two other future rulers, Ptolemy and Cassander.
It is said that Aristotle prepared for Alexander an annotated copy of the Iliad, which inspired the prince to model his life on that of the demy-divine Achilles. Even if the story is invented, Aristotle’s influence over Alexander is indicated by the crowd of zoologists and botanists that accompanied him on his Eastern conquests, and by the official chronicler of these conquests, who was none other than Aristotle’s great nephew, Callisthenes of Olynthus.
According to both Plutarch and Aulus Gellius, upon hearing that Aristotle had published some of his teachings, Alexander wrote to him from Asia:
Alexander to Aristotle, greeting. You have not done well to publish your books of oral doctrine; for what is there now that we excel others in, if those things which we have been instructed in be laid open to all? For my part, I assure you, I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion. Farewell.
Later, as pharaoh in Egypt, Ptolemy built the Great Library of Alexandria, turning the city, which had been founded by Alexander, into a major centre of learning. Alexander, and Ptolemy after him, did much to disseminate Greek culture, so that three centuries later Greek seemed like the natural choice of language for the New Testament.
The Lyceum
In around 339, Speussipus suffered a stroke and died, and Xenocrates became the third scholarch of the Academy, with Aristotle passed over for a second time. Among those who frequented the lectures of Xenocrates at the Academy were Zeno of Citium, founder of the Stoic school, and Epicurus of Samos, founder of the Epicurean school.
In 334, Aristotle, now returned to Athens, established his own school in a public exercise and training ground dedicated to the god Apollo Lyceus [‘Apollo the Wolf-god’], whence its name, the Lyceum. A temple had once stood on the expansive site, which in Aristotle’s time had different areas dedicated to different purposes. Both Socrates and Plato had spoken or taught there, to the extent that the Lyceum is the setting of Plato’s Euthydemus, which features Socrates and Cleinias, the grandson of Alcibiades, in conversation with Euthydemus and Dionysodorus, a pair of moronic brothers and sophists.
Aristotle taught in the morning, and in the afternoon would sometimes give a public lecture. He often did his thinking and teaching while walking along the Lyceum’s shaded paths, or peripatoi, so that his students, who doubled up as his colleagues and researchers, came to be known as the peripatetics.
Over the next twelve years, Aristotle wrote many of his works and collected the West’s first great library, including copies of the constitutions of 158 cities. He also developed the world’s first botanical garden and zoological park from the plant and animal specimens that Alexander kept returning from the East.
After the death of his wife Pythias, he became involved with Herpyllis of Stageira, who bore him a son whom he named Nicomachus after his father. To this son, he dedicated his major work of ethics, the Nicomachean Ethics. According to the Suda, he also had an eromenos [younger male lover], the historian Palæphatus of Abydus.
Aristotle’s school lived or limped on until 86 BCE, when Athens was sacked by Sulla, the only man in history to have occupied both Athens and Rome. According to Plutarch, Sulla felled the ancient planes of the Academy and Lyceum to build siege engines. In antiquity, the Lyceum had stood to the east of the city wall. In 1996, its remains were uncovered in a park behind the Hellenic Parliament, while clearing space for the new Museum of Modern Art.
Exile and Death
In the East, Callisthenes had become increasingly critical of Alexander’s adoption of Persian customs, especially those, such as proskynesis (falling down before the king and kissing the ground or his feet), which fed into his mounting megalomania.
When a former pupil implicated Callisthenes in a regicidal plot, Alexander left Aristotle’s great nephew to perish in prison. According to Diogenes Laertius, Callisthenes was ‘confined in an iron cage and carried about until he became infested with vermin through lack of proper attention; and finally he was thrown to a lion and so met his end.’ The death of his great nephew soured Aristotle’s relationship with Alexander, and prompted Theophrastus to write a treatise on grief, the now lost Callisthenes.
Even so, Aristotle’s long-time association with Alexander had led the Athenians to perceive him as Macedonian. After Alexander’s death in Babylon in 323, anti-Macedonian feeling in Athens flared up, and Demophilius and Eurymedon the Hierophant charged Aristotle with impiety, possibly for praying to his late friend Hermias rather than anything in the Physics or Metaphysics. Aristotle fled to the solitude, or loneliness, of his country house at Chalcis in Eubœa, an island off the Attic coast and the homeland of his mother’s family. Referencing the trial and execution of Socrates, he explained, ‘I will not allow the Athenians to sin twice against philosophy.’
In the event, Aristotle died within the year, in 322, aged sixty-two, possibly from an abdominal condition. Theophrastus, who was not Macedonian but Lesbian, had remained in Athens as scholarch of the peripatetic school. In his will, Aristotle named him as his successor and bequeathed him his works and library. On the family side, he left a furnished house, three female slaves, and a talent of silver to his wife or concubine Herpyllis. And he appointed his nephew Nicanor as guardian to the still young Nicomachus. Nicomachus became a pupil of Theophrastus and, according to Aristippus, his eromenos. He died in battle while still young.
The most famous Pope Leo, Leo X, was steeped in Plato.
The eminent Byzantine Greek scholar George Gemistos Plethon, who privately rejected Christianity, so admired Plato that he took the name ‘Plethon’. At the 1438-39 Council of Florence, he reintroduced Plato to the West as part of a failed attempt to repair the Great Schism between the Eastern and the Western Church and present a united front to the Ottoman Empire (Constantinople finally fell to the Ottomans in 1453).
While in Florence, Gemistos Plethon made an impression on the banker, politician, and patron of the arts Cosimo de’ Medici, who had, among others, commissioned the David of Donatello, the first freestanding male nude since antiquity. He persuaded Cosimo to establish an institute and informal discussion group, now known as the Platonic Academy of Florence, which, under Cosimo’s protégé Marsilio Ficino, went on to translate all of Plato’s extant works into Latin. Ficino seems to have coined the term ‘Platonic love’ [amor platonicus], which first appears in a letter that he wrote to Alamanno Donati in 1476. In 1492, he published a series of Platonic love letters to Giovanni amico mio perfettisimo [‘Giovanni my most perfect friend’], the poet Giovanni Cavalcanti.
Cosimo appointed Ficino as tutor to his grandson Lorenzo de’ Medici (1449-1492)—who, within his own lifetime, came to be known as ‘the Magnificent’. Lorenzo retrieved large numbers of classical works from the East and established a workshop to have them copied and disseminated. His circle of friends, which included the likes of Poliziano and Pico della Mirandola, supported the development of Renaissance humanism. His handsome brother Giuliano served as the model for Mars in Botticelli’s Mars and Venus, and Lorenzo also sponsored the likes of Ghirlandaio, Pollaiuolo, Verrocchio, Leonardo, and Michelangelo, who, for three years, lived and dined with him.
Lorenzo’s second son Giovanni rose to the papacy as Leo X (r. 1513-21). According to Alexandre Dumas père, Christianity under Leo ‘assumed a pagan, Greco-Roman character… Crimes for the moment disappeared, to give place to vices; but to charming vices, vices in good taste, such as those indulged by Alcibiades and sung by Catullus.’
After Giuliano’s murder in the Pazzi conspiracy, Lorenzo raised his illegitimate nephew, Giulio di Giuliano, as his own son. As the second Medici pope, Clement VII (r. 1523-34), Giulio approved Copernicus’ heliocentric model of the universe a century before Galileo’s heresy trial for similar ideas. He also commissioned works by Cellini, Raphael, and Michelangelo, including Michelangelo’s Last Judgement in the Sistine Chapel. What an ending, for a bastard orphan.
In the early twentieth century, digs on Crete, led by Sir Arthur Evans, uncovered the remains of a complex civilization whose people Evans called the Minoans after the mythical King Minos. The Minoans flourished from around 3000 to 1500 BCE, and their society came to revolve around a series of palace complexes, the largest of which was at Knossos in the north of the island.
The Minoans grew rich from trade and acquired a hold on some of their neighbours, including perhaps on the city of Athens. According to myth, King Minos exacted out of Athens a nine-yearly tribute of seven boys and seven girls, to be thrown to the illegitimate son of Minos’ queen Pasiphae, the half-man, half-bull Minotaur, imprisoned in the labyrinth beneath the royal palace at Knossos.
But when the time came for the third tribute, Theseus, the founder-hero of Athens, took the place of one of the sacrificial boys in a daring bid to end this barbaric practice. Theseus killed the Minotaur with some help from Minos’ daughter Ariadne, who had given him a ball of red thread by which to retrace his steps out of the labyrinth. Theseus escaped with Ariadne but later abandoned her on the island of Naxos, to be wedded by the god Dionysus.
The myth of the Minotaur served in part to account for the shift in power from Minoan Crete to Mycenaean Greece, and, later, to Athens, and it is significant that Theseus also unified Attica under Athens, laying the foundation for the later Athenian Empire. The Mycenaeans flourished from around 1750 to 1050 BCE, with important centres, each built around a fortified palace, at Mycenae, Pylos, Thebes, and Athens, among others. They were dominated by a warrior aristocracy, and advanced by conquest rather than by trade as the Minoans had done. Their greatest achievement, sung by Homer, was the conquest of Troy in around 1250 BCE.
Towards the close of the Bronze Age, the Mycenaeans may have come under increasing pressure from the Dorians to the north. Whatever its cause, it took some three hundred years for Greece to recover from the demise of the Mycenaeans. During these Dark Ages, old trade links dissolved, the arts and crafts regressed, and famine set in. Many Greeks took to the seas in search of arable land, beginning a culture of colonization.
Looking to the upside, the disintegration of the rigid hereditary hierarchy of the Mycenaeans prepared the ground for a more open society, leading, in due course, to Athenian democracy. In particular, the loss of the Mycenaean king, or wanax, led to a loosening of the bond between myth and ritual so that myth became more detached and disinterested, paving the way for literature and philosophy.
The Mycenaean Linear B script, used for administration and mainly found in palace archives, fell into desuetude during the Dark Ages. Consisting of 87 syllabic and over 100 ideographic signs, Linear B derived from the as yet undeciphered Linear A, used by the non-Greek Minoans to record their mysterious language or languages.
By 770 BCE, close contact with the Phoenicians in the east led to the adoption of a phonetic system of language notation. The Greeks adapted the Phoenician abjad (an alphabet with only consonants), which had been developed for a semitic language, to include vowels, thereby creating the basis for our own modern alphabet.
Significantly, this phonetic script was no longer the preserve of an elite of priests and scribes, used to reaffirm royal power, but a common good, used, more and more, to argue and debate and question the status quo. Life in the emerging city-states [poleis] no longer centred on the royal acropolis, now turned over to the gods, but on the public square or agora, and the nearby law courts where large citizen juries listened to long, elaborate speeches and grew familiar with the concept of objective truth.
The Pre-Socratics and their significance
In Plato’s Protagoras, Socrates numbers Thales of Miletus (c. 624-c. 548 BCE) among the Seven Sages of Greece. Thales held that the Earth floats on water, which is the primary substance from which all else is made. ‘Presumably’ says Aristotle, ‘he derived this assumption from seeing that the nutriment of everything is moist…’ Or perhaps he derived it from similar Egyptian, Babylonian, and Hebrew accounts of creation. But in a break with these traditions, he sought to explain the world without resorting to myths and gods, which is why he is often regarded as the first genuine philosopher, as well as the first genuine scientist. When Bertrand Russell (d. 1970) declared that ‘philosophy begins with Thales’, he was, in fact, merely agreeing with Aristotle.
Anaximander of Miletus (c. 610-546 BCE) took Thales as a model and starting point. Like Thales, he sought for the primary substance, or arkhē, which he identified not with water but with apeiron [‘the boundless’]. The Earth, he held, is a cylinder with a height of one-third of its diameter. Thales had claimed that the Earth floats upon water, without specifying what the water might rest upon. Anaximander got round this problem by positing that the cylinder need not be supported: because it is in the middle of everything, there is no reason for it to move in one direction over another. As far as we know, this is the oldest argument founded on the principle of sufficient reason, according to which every instance of change requires a reason or cause.
Anaximenes of Miletus (c. 586-c.526 BCE), a contemporary of Anaximander, rejected apeiron and replaced it with his own arkhē, aēr [air, but also mist and vapour]. The Earth is a flat disc that floats on a cushion of aēr. Anaximenes elaborated upon Thales and Anaximander by positing a mechanism, or two mechanisms, rarefaction and condensation, by which his arkhē might pass into and out of everything else. When aēr is rarefied, it becomes fire; when it is condensed, it becomes wind, then cloud, then water, then stones… To support this thesis, Anaximenes appealed to a simple experiment: when one exhales on one’s hand, the air is hot; but if one blows through pursed lips, the air becomes cold and dense. With his emphasis on change and its process, Anaximenes might be thought of as a forerunner of Heraclitus. The Milesian search for the basic material out of which all things are made may sound quaint and quixotic, until we remember that it is the same quest that our nuclear physicists are embarked upon—this time with the help of giant particle accelerators.
After the downfall of Miletus in 494 BCE, the epicentre of philosophy shifted westwards, away from Ionia and towards Athens and the cities of Italy. At the age of 40, Pythagoras of Samos (c. 560-c. 495 BCE), a contemporary of Anaximander and Anaximenes, left Samos for Croton in southern Italy, where he established a philosophically minded religious community. Music played an important role in Pythagoras’ community. Pythagoreans recited poetry, sang hymns to Apollo, and played on the lyre to cure illnesses of body and soul. One day, or so the story goes, Pythagoras passed by some blacksmiths at work, and found that their hammering produced especially pleasing sounds. He then noticed that their anvils were simple ratios of one another, one being half the size of the first, another twice the size, and so on. This insight led to his ‘harmony of the spheres’, according to which the movements of the heavenly bodies are in a mathematical relationship akin to that between musical notes, and, together, amount to a grand cosmic symphony. Some two thousand years later, the astronomer Johannes Kepler (d. 1630) held that, though inaudible, this ‘music of the spheres’ might nonetheless be heard by the soul. In the Metaphysics, Aristotle says that Plato’s teachings owed much to those of the Pythagoreans; so much, in fact, that Bertrand Russell upheld not Plato but Pythagoras as the most influential of all philosophers. Pythagoras’ influence is perhaps most evident in Plato’s emphasis on mathematics, and, more generally, reason and abstract thought, as a secure basis for the practice of philosophy.
Xenophanes (c. 570-c. 478 BCE) came from Colophon in Ionia, but left in his mid-twenties and ‘tossed about the Greek Land’ for 67 years—as he himself tells us in one of his 45 surviving fragments. He clearly knew of Pythagoras, whom he discusses in Fragment 7. Xenophanes criticized the likes of Homer and Hesiod for anthropomorphizing the gods (conceiving of them in human form) and portraying them as immoral or amoral. But far from being an atheist, he instead suggested that there is ‘one god, the greatest among gods and men, neither in form like unto mortals nor in thought’. He held that the primary substance is earth, while also acknowledging the importance of water to life. From the existence of inland fossils, he inferred that the earth had at one time been covered by the sea. Despite pronouncing himself on the weightiest matters, he warned that secure knowledge is impossible: ‘There never was or will be a man who has certain knowledge about the gods and about all the things I speak of. Even if he should chance to say the complete truth, yet he himself knows not that it is so.’ This subtle and original distinction between knowledge and true belief is further developed by Plato in the Theaetetus. Another skeptical (or proto-skeptical) point made by Xenophanes is that our perceptions and beliefs are relative and context-dependent: ‘If god had not made brown honey, men would think figs far sweeter than they do.’
Parmenides of Elea (c. 515-c. 440 BCE) in southern Italy may have been acquainted with Xenophanes, whose work he knew. In contrast to his contemporary Heraclitus (c. 535-475 BCE), who held that everything is in a state of flux (as epitomised by his saying that you cannot step twice into the same river), Parmenides argued that nothing ever changes. He wrote a poem, On Nature, which begins with a proem in which the narrator (presumably himself) ascends to the abode of an unnamed goddess.
To her guest, the goddess reveals the nature of reality, or ‘Way of Truth’—which I shall paraphrase for you:
What is, is, and it is impossible for it not to be. And what is not is not, and it is impossible for it to be. One cannot conceive of what is not, because one cannot think or speak about nothing. Conversely, if one can think or speak about something, then that thing must be, ‘for thought and being are the same.’ It being possible to think about reality, reality must be—and if it is, it cannot not be. Something cannot come into being, or pass out of being, because something cannot come into being from nothing, or pass from something into nothing. Thus, if something comes into being, it does so not from nothing but from something—so that it does not really come into being at all. From this, it follows that there can be no becoming and thus no real change, even though sense experience tells us otherwise. Motion is impossible because it would require moving into a void, that is, moving into nothing, which does not exist. If motion and change are impossible, the universe must consist of a single, undifferentiated, and indivisible unity—which Parmenides called, ‘the One’.
To bolster the philosophy of Parmenides, his follower and lover Zeno of Elea produced a set of paradoxical arguments such as ‘Achilles and the Tortoise’ designed to undermine ordinary beliefs about motion, space, time, and plurality. Aristotle outlines ‘Achilles and the Tortoise’ in the Physics: ‘In a race the quickest runner can never overtake the slowest, since the pursuer must first reach the point whence the pursued started, so that the slower must always hold a lead.’
What is new and revolutionary about ‘the Way of Truth’ is that it consists in a long chain of strictdeductive argumentation from premises that are taken to be necessary truths. The conclusion, startling though it is, seems to follow necessarily from the premises, posing a serious challenge to anyone defending a different or commonsense position. Two thousand years later, Descartes would embark on a similar project in search of truths deemed to be incontrovertible.
The pre-Socratics conceived of the universe as an ordered whole. They attempted to explain its fundamental features without resorting to myths and gods. Instead of accounting for the here and now by the supposed beginning, they accounted for the supposed beginning by the here and now. In so doing, they gave rise to the very idea of philosophy and science, and, more pertinently for us, to the rules or principles of reasoning on which they rely. Reason, after all, is the understanding of causes, which is why it is called ‘reason’. What may have come as a surprise to them, especially after Parmenides, is that reason could conflict with ordinary sense experience—perhaps more so even than mythology and religion.
Other scientific or academic attitudes adopted by the Pre-Socratics include conceiving of the world as intelligible; searching for knowledge for its own sake; asking bold questions without fear or favour; developing and manipulating abstract concepts; and privileging elegant and economical explanations.
At the same time, many pre-Socratics, such as Pythagoras and Empedocles, retained something of a mystical streak. Like the mythologists of old, they were more interested in cosmogony than in uncovering the laws of nature, that is, more interested in grand narratives than in formulating empirically verifiable hypotheses. Although familiar with the work of their forebears and contemporaries—and, it seems, highly driven by it—they did not rigorously critique one another in the way that Aristotle would do in writing a whole book on (or against) Democritus.
The Sophists
Now down from the ivory towers and back to the budding assemblies and law courts. The sophistic movement, which revolved around Golden Age Athens (480-404 BCE), owed to a concatenation of unusual social and political circumstances, not least: a renewed sense of self-confidence and optimism fuelled by the improbable repulsion of two Persian invasions; the great wealth flowing in from the maritime empire that had grown out of an anti-Persian defensive alliance; and an extreme participatory democracy in which the power to speak was the power to lead. Political power, however, was a double-edged sword, since prominent citizens were vulnerable to vexatious lawsuits—and, rather than hiring a lawyer, had to mount their own defence.
In this climate, the ability to speak became paramount, and the sophists—essentially teachers of rhetoric—converged upon Athens to deliver public lectures and private classes, typically to young aristoi with worldly ambitions. Other Greek poleis, especially in Sicily and Italy, also called upon their services, so that the chief sophists were continually on tour. When in Athens, they would often reside at the house of a patron such as the magnate Callias, at whose house Plato’s Protagoras is set, or the politician Callicles, at whose house Plato’s Gorgias is set. According to Plato, Callias owned ‘the greatest and most glorious house in Athens’ [Protagoras 337d] and ‘spent a world of money on the sophists’ [Apology20a].
In the Protagoras, Plato intimates that Protagoras invented the role of the professional sophist. Protagoras gravitated towards Athens and so impressed Pericles that, in 444, Pericles invited him to draft the constitution of Thurri, his experimental panhellenic colony on the Tarantine Gulf—settled, among others, by the historian Herodotus and the orator Lysias. Protagoras is perhaps best remembered for his maxim that ‘man is the measure of all things’, attacked in Plato’s Theaetetus on the grounds that, if true, nothing could be inherently true or false, or right or wrong—not even the maxim itself. According to Protagoras, the value of an opinion lies not in its truth but in its usefulness to the person who holds it, a slippery position that could readily be seized upon by scoundrels in search of self-justification.
Protagoras is also remembered for the outré opening of his lost work, About the Gods:
About the gods, I cannot be sure whether they exist or not, or what they are like to see; for many things stand in the way of the knowledge of them, both the opacity of the subject and the shortness of human life.
Protagoras charged extortionate fees for his services. According to Aulus Gellius, he once took on a pupil, Euathlus, on the understanding that he would be paid once Euathlus had won his first court case. However, Euathlus never won a case, and after a time Protagoras sued him for non-payment. Protagoras argued that if he won the case he would be paid, and if Euathlus won the case, he would still be paid, because Euathlus would then have won a case. Euathlus, having assimilated the methods of his master, retorted that if he won the case he would not have to pay, and if Protagoras won the case, he still would not have to pay, because he still would not have won a case! This so-called Paradox of the Court, and the concomitant Counterdilemma of Euathlus, is also told of Corax [‘Crow’] of Syracuse and his student Tisias, the nominal founders or inventors of rhetoric. One version ends with the judge throwing them both out of the court with the words, Kakou korakos kakon ōon [‘A bad egg from a bad crow’].
Sophistês [‘expert’] derives from sophos [‘wise’], and originally designated one who is learnt or skilled in a particular art or craft. But the term began to acquire derogatory connotations even before Plato, who held most sophists in contempt. The comedian Aristophanes had assimilated Socrates with the sophists, leading, ultimately, to the charges of impiety levied against the philosopher. To rehabilitate the reputation of Socrates, Plato laboured the contrast between Socrates and the sophists, whom he portrayed as venal and amoral and nothing like his poor and pious teacher. As a result, ‘sophistry’ has come to mean something like, ‘the self-interested use of clever but deceptive arguments.’ In an attempt to demarcate and elevate philosophy as a discipline, Plato also sought to undermine poets and orators and all those with a rival but less rigorous claim to the truth.
To be fair to Plato, it does seem that many sophists had a strong and potentially self-serving skeptical streak. Although they did raise many profound questions, they seemed more interested in expediency than in knowledge per se—their primary purpose being to create effective public speakers and enrich themselves in the process, without due regard for the consequences of creating a cohort of venal and amoral leaders. Their habit of undermining the traditional gods turned many conservatives and ordinary people against them, and, ultimately, against Socrates, who was condemned by (false) association.
Socrates and Plato
According to Plato, Socrates had an impetuous friend called Chaerephon, who one day went to Delphi and asked the oracle whether there was anyone wiser than Socrates. The oracle replied that there was no one wiser. Knowing only that he knew nothing, Socrates was perplexed. To discover the meaning of the oracle, he questioned several supposedly wise men—first the politicians, then the poets, and then the artisans—and in each case concluded: ‘I am likely to be wiser than he to this small extent, that I do not think I know what I do not know.’
Socrates was the wisest of men not because he knew everything or anything, but because he knew what he did not know—or, more subtly, because he knew the limits of the little that he did know. In contrast to the pre-Socratics and especially to the sophists, he seldom claimed to have any positive knowledge; whenever he did, it was always because he had learnt it from somebody else, or because he had been ‘divinely inspired’.
The ever-elusive Plato might also have intended the oracle story as an origin myth for the Socratic method, or method of elenchus, which consists in questioning one or more people about an ethical concept such as justice or virtue with the covert aim of exposing a contradiction in their initial (and often cherished) assumptions and provoking a reappraisal of the concept. As the process is iterative, it leads to an increasingly precise or refined definition of the concept, and, in due course, to a shared recognition that it eludes our understanding and that we know much less than we thought we did. With our dogmatism transmuted into a state of puzzlement and suspended judgement, we are ready to become much more open and subtle thinkers—assuming, of course, that we did not first become angry and resentful.
To have our understanding of a moral concept undermined is also to have our values undermined, and, with that, our sense of self. To manage their anger and other feelings, and to keep them talking, Socrates often flattered his interlocutors while himself playing the fool. In the Orator, Cicero esteems that, ‘for irony and dissimulation, [Socrates] far excelled all other men in the wit and genius which he displayed.’ Simon Blackburn in the Oxford Dictionary of Philosophy defines Socratic irony with brio as ‘Socrates’ irritating tendency to praise his hearers while undermining them, or to disparage his own superior abilities while manifesting them.’
Although Socrates may have perfected the method of elenchus, it is unlikely that he independently originated a mode of conversation that seems so naturally and fundamentally human. But it remains that while the sophists tried to make a show of their knowledge, Socrates tried to make a show of his and everyone else’s ignorance.
Behind the Socratic method, that is, the method of elenchus as perfected by Socrates, lies the search for rigorous definitions—because it helps, if one is to pronounce on something, to know exactly what that something is. For instance, in Plato’s Meno, Socrates tasks the aristocrat Meno with defining virtue; in the Laches, he tasks the general Laches with defining courage; and in the Euthyphro, he tasks the priest-prophet Euthyphro with defining piety. That Meno, who is philosophically trained, struggles to understand what Socrates is asking of him suggests that this search for rigorous definitions is something original and radical. For Socrates, it is not enough simply to define a concept in terms of itself or related concepts, or by a list of its instances, or according to convention or popular opinion (‘piety is what the gods all love’). Instead, a rigorous definition is one which, by picking out the essence of a concept, applies to all its instances and none more. For example, Meno’s definition of virtue as ‘the ability to rule over people’ is both too narrow for excluding children and slaves (who might also be virtuous), and too broad for including those who rule unjustly (and who are therefore not virtuous).
When seeking to define something, Socrates sometimes turns to the method of collection and division. In Plato’s Phaedrus, he responds to an orator’s speech on love with two speeches of his own. In his first speech, he debases love by claiming that it is a form of madness. But in his second, more considered, speech, he praises love for being ‘the highest form of madness’. Later in the dialogue, he points out that rhetoric has the most power with abstract notions such as ‘love’ and ‘justice’ that mean different things to different people and even to the same person from moment to moment. For this reason, in his second speech, he began by distinguishing between human and divine madness, and the four forms of divine madness (prophecy, mystic rites, poetry, and love). This, he says, involved collecting all the various forms of madness, and then dividing them up again ‘according to the natural formation’.
Occasionally, Socrates proceeded instead by the maieutic method, which is often confused with the method of elenchus. But whereas the Socratic method aims at aporia [suspension of belief], the maieutic method aims more properly at hypothesis generation and testing.
In Plato’s Theaetetus, the young Theaetetus contrasts his ease in defining mathematical terms with his difficulty in defining knowledge. He confesses that he has long pondered the problem of knowledge and suffers from his lack of an adequate solution. Socrates responds, ‘These are the pangs of labour, my dear Theaetetus; you have something within you which you are bringing forth.’ Socrates goes on to compare himself to a midwife [maia—hence, ‘maieutic method’] who works with men rather than women, and the soul rather than the body. Just as the midwife is beyond bearing age, so he too is barren—not of children, but of wisdom. All he can do is bring forth the wisdom of others and thoroughly examine it.
Once he understands what Socrates is asking of him, Theaetetus offers three definitions of knowledge (knowledge as perception, knowledge as true belief, and knowledge as true belief with an account, i.e. justified true belief), each of which is rejected, or falsified, by Socrates. So although the Theaetetus ends in aporia, it is more of an exploratory dialogue than a classic aporetic one. It is no coincidence that Theaetetus is a model of humility and perplexity: because he begins in aporia, or adogmatism, he is an ideal candidate for the more positive, collaborative maieutic method.
Yes, Socrates, and I am amazed when I think of [these kinds of contradiction]; by the Gods I am! And I want to know what on earth they mean; and there are times when my head quite swims with the contemplation of them.
I see, my dear Theaetetus, that Theodorus had a true insight into your nature when he said that you were a philosopher, for wonder is the feeling of a philosopher, and philosophy begins in wonder.
Aristotle
When, in 366, Plato returned from his second trip to Syracuse, he would have found a bright new face at the Academy. The young Aristotle began in Plato’s fold, even writing dialogues in the manner of Plato, but later diverged from him and founded his own school, the Lyceum.
Unlike Plato, Aristotle privileged observation over speculation. Like modern scientists, he began with a systematic gathering of data, from which he attempted to infer explanations and make predictions. He carried out dissections and even rudimentary experiments such as cutting out the heart of a turtle to discover that it could still move its limbs for a surprisingly long time. However, he did not carry out anything like modern case-control studies, and relied uncritically on the lay testimony of beekeepers, fishermen, travellers, and the like. This lack of rigour led to some embarrassing errors, such as the claim that lions copulate back-to-back, while bears adopt the missionary position and hedgehogs stand on their hind legs to face each other. Or the claim that the female of several species has fewer teeth than the male. Among these species, he included humans, when he could simply have looked into his wife or daughter’s mouth.
Aristotle referred to the branches of learning as ‘sciences’, and divided them into three groups: practical sciences, productive sciences, and theoretical sciences.
Practical sciences are concerned with right action and beautiful behaviour both at the level of the individual, as in ethics, and at the level of the community, as in politics.
Productive sciences are concerned with products or outcomes, and include, among many others, agriculture, architecture, ship-building, medicine, music, and rhetoric.
Theoretical sciences are concerned with knowledge for its own sake, and comprise both natural sciences and non-empirical forms of knowledge such as mathematic and metaphysics.
Logic, that is, the branch of learning that is concerned with the principles of intellectual inquiry, does not fit into this tripartite division of the sciences, but underpins them all, and stands alone and apart under the heading of Organon [‘Tool’].
Aristotle’s logic, or ‘analytics’ as he called it, is the first ever systematic study of human reasoning, and the second ever formal system after the Astadhyayi [Sanskrit grammar] of Panini. At the end of Sophistical Refutations (the sixth and last book of the Organon), Aristotle himself says that, in most cases, discoveries lean upon the achievements of others, but in this case, ‘Nothing existed at all… we had absolutely nothing else of an earlier date to mention, but were kept at work for a long time in experimental researches.’ More than two thousand years later, no less an authority than Immanuel Kant (d. 1804) deemed Aristotle’s logic to be complete and unsurpassed.
In fact, Chrysippus (d. c. 206 BCE), the third scholarch of the Stoic school, had developed a more sophisticated system of propositional logic. In the third century CE, Diogenes Laertius wrote that Chrysippus was so renowned for dialectic [reasoned argument] that ‘most people thought, if the gods took to dialectic, they would adopt no other system than that of Chrysippus.’ However, Stoic logic came to be lost—along with the more than seven hundred works of Chrysippus (who might otherwise have been a household name)—while Aristotle’s deductive or syllogistic logic came to dominate.Because logic seemed capable of uncovering the hidden truths of nature, the Aristotelian system was heavily taken up in the monasteries and madrasas. In Islamic scholarship, Aristotle’s Rhetoric and Poetics came to be appended to the Organon, and it is true that the works lie on a spectrum: whereas the Organon is about uncovering the truth, the Rhetoric and Poetics are about instilling it in less philosophical types.
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