I hold [wrote Hippocrates], that it is an excellent thing for a physician to practise forecasting. For if he discover and declare unaided by the side of his patients the present, the past and the future, and fill in the gaps in the account given by the sick, he will be the more believed to understand the cases so that men will confidently entrust themselves to him for treatment. Furthermore, he will carry out the treatment best if he knows beforehand from the present symptoms what will take place later. Now to restore every patient to health is impossible. To do so indeed would have been better even than forecasting the future. But as a matter of fact men do die, some owing to the severity of the disease before they summon the physician, others expiring immediately after calling him inâliving one day or a little longerâbefore the physician by his art can combat each disease. It is necessary, therefore, to learn the natures of such diseases, how much they exceed the strength of men's bodies, and to learn how to forecast them. For in this way you will justly win respect and be an able physician. For the longer time you plan to meet each emergency the greater your power to save those who have a chance of recovery, while you will be blameless if you learn and declare beforehand those who will die and those who will get better.9
The most influential seer in Periclean Athens was Lampo, who advised the founder of the New Greek Colony of Thurii and was a sort of political pamphleteer.10 Other chresmologues were Onomacritus, who advised Xerxes, and Diopithes who tried to prevent Agiesilaus becoming King of Sparta. The most famous of such advisors was Plato, who paid three visits to Syracuse. In the interval he put forward his theory of ideasâthat intelligible form of a thing exists outside the sense world of its actuality, and that the supreme idea was that of the Good. A state, quite unlike that under Dionysius in Syracuse, took shape in his Republic, one of a series of dramatic dialogues in which he put forth such general ideas in ideological concreteness. Now Plato's theory of forms depended on his mathematics. To him God was a geometer, and his insights into the structure of generations of individuals, indeed his provision of a special relationship between individuals as members of a living organism, suggested to a recent writer that:
The brilliant development in the physical sciences [in the twentieth century] has tended again unconsciously by its own dialectic to confirm the Platonic intuition of form and measure everywhere. The building bricks of natureâelectrons, neutrons, etc.âare measured, are constant in nature, and this fact indicates cosmic control. The discovery by Moseley of atomic numberâa series of atomic forms repeated in nature everywhereâis evidence of the cosmic architecture which would have delighted the soul of Plato. There is now also an indication of a life-numberâa radiating pattern of life forms. This order, even more obviously than atomic number, has reference to time.11
So side by side with the impetus from medicine and mathematics, legend fostered belief in prediction. Calchas, the wisest soothsayer among the Greeks at Troy, explained how long the war would last, but died, according to one legend, when he was outprophesied by another soothsayer Mopsus, whose maternal grandfather had prophesied that Thebes would be victorious against the seven. Blind from the age of seven, this grandfather had been given in compensation the power of prophecy which was to last for seven or nine generations. His name, immortalised for us by Tennyson, Swinburne, and T. S. Eliot, was Tiresias.
III THE SIBYL
So unimaginatively operated was the official soothsaying of the Romans that Cato the Elder imagined a hartdspex laughing if he met a colleague of the craft. Cato advised readers of his book on agriculture not to consult either a haruspex or an augur, much less the quacks and Oriental prophets that flooded Rome in his dayâ the harioli and Chaldeans.12 The augurs, however, took themselves seriously. Cicero, speaking as one of the craft, argued:
. . . that there is no nation, whether the most learned and enlightened or the most grossly barbarous, that does not believe that the future can be revealed, and does not recognise in certain people the power of foretelling it.
It is an ancient belief [he continued in his De Divinatione], that there exists within mankind an undeniable faculty of divination. The Greeks called it mantike, the capacity to foresee, to know future events, a sublime and salutary act that raises human nature most nearly to the level of divine power.
Clues to the course of action to be adopted by the state were provided by the book of the Sibyl. This was a collection of rhymes attributed to a wise woman of Cumae, and was believed to have been purchased by King Tarquin. Meticulously preserved, they were invariably consulted by the Quindecemviri before any political move was made. All access to them was only on the order of the Senate, supplemented with the help of two officials with a knowledge of Greek. Destroyed by fire in 83 B.C., the Sibylline books were reconstituted after the Senate had sent special envoys to places possessing Sibylline writings to produce a more authoritative edition. This was then deposited in the vaults of the temple of Jupiter Capitolinus, becoming such a buttress of the established order that conspirators like Lentulus had to manufacture others to confute them. Such 'false' oracles, in acrostics, for safety's sake, had such a wide circulation that Augustus destroyed nearly two thousand volumes of them in 12 B.C. The original official books he had re-copied and deposited in his new temple of the Palatine Apollo. Later a similar inspection and re-editing was ordered by Tiberius.
The spectacle of Apollo dashing from shrine to shrineâDelphi, Colophon, Xanthus, Claros, Delos, or the Branchidae (a family of temple keepers), to give advice on future action to the many who consulted him, amused Lucian. As a result he wrote his True History: the inspiration of a new type of mock prophecy or satire: a foretaste of Gulliver's Travels.13
For by Plutarch's time, ad hoc expedients had hardened into meaningless rituals of divination. Indicative divination studied phenomena like birds (ornithomancy), phrases (cledonomancy), entrails (hieromancy), fire (pyromancy), water (hydromancy) mirrors (cataptromancy) or the lot (cleromancy) as manifest by dice or pebbles (astragalomancy), the swing of the pendulum (dactyliomancy), quotations on slips of paper (rhapsodomancy), or use of vessels of water (lecanomancy).14 Intuitive divination relied on divine possession. Mantike, a third category, consisted of the interpretation of dreams (oneiromancy) or evoking the ghosts of the dead (necromancy).
IV VIRGIL THE OPTIMIST
The first Roman to entertain a hopeful or Hebrew view of the future was Virgil. Before his time it was held that the world was declining from a gold to a silver, then to a bronze, and then to an iron age. Thus Horace wrote:
Damnosa quid non imminuit dies?
Aetas parentum peior avis tuilit
Nos nequiores, max daturos
Progeniem vitiosiorem;
and Juvenal:
Nona aetas oritus peioraque saecutla ferri
Temporibus, quorum sceleri non invenit ipsa
Nomen et a nullo posuit natura metallo.
But Virgil held to the Hebrew view that man's true perfection lay ahead of and not behind him. This led to Virgil's fourth eclo...