121:4.5

Such are the lives of the several Cynics. But we will go on to append the doctrines which they held in common – if, that is, we decide that Cynicism is really a philosophy, and not, as some maintain, just a way of life. They are content then, like Ariston of Chios, to do away with the subjects of Logic and Physics and to devote their whole attention to Ethics. And what some assert of Socrates, Diocles records of Diogenes, representing him as saying: "We must inquire into Whate'er of good or ill within our halls is wrought." They also dispense with the ordinary subjects of instruction. At least Antisthenes used to say that those who had attained discretion had better not study literature, lest they should be perverted by alien influences.

They also hold that we should live frugally, eating food for nourishment only and wearing a single garment. Wealth and fame and high birth they despise. Some at all events are vegetarians and drink cold water only and are content with any kind of shelter or tubs, like Diogenes, who used to say that it was the privilege of the gods to need nothing and of god-like men to want but little. They hold, further, that virtue can be taught, as Antisthenes maintains in his Heracles, and when once acquired cannot be lost; and that the wise man is worthy to be loved, impeccable, and a friend to his like; and that we should entrust nothing to fortune. Whatever is intermediate between Virtue and Vice they, in agreement with Ariston of Chios, account indifferent. So much, then, for the Cynics. We must now pass on to the Stoics, whose founder was Zeno, a disciple of Crates.

Wisdom is a most sure stronghold which never crumbles away nor is betrayed. Walls of defence must be constructed in our own impregnable reasonings. He used to converse in the gymnasium of Cynosarges (White hound) at no great distance from the gates, and some think that the Cynic school derived its name from Cynosarges. Antisthenes himself too was nicknamed a hound pure and simple. And he was the first, Diocles tells us, to double his cloak and be content with that one garment and to take up a staff and a wallet. Neanthes too asserts that he was the first to double his mantle. Sosicrates, however, in the third book of his Successions of Philosophers says this was first done by Diodorus of Aspendus, who also let his beard grow and used a staff and a wallet.