And one of his sayings used to be, that nothing was more unfriendly to the comprehension of the accurate sciences than poetry; and that there was nothing that we stood in so much need of as time. When he was asked what a friend was, he replied, “Another I.” They say that he was once scourging a slave whom he had detected in theft; and when he said to him, “It was fated that I should steal;” he rejoined, “Yes, and that you should be beaten.” He used to call beauty the flower of the voice; but some report this as if he had said that the voice is the flower of beauty. On one occasion, when he saw a slave belonging to one of his friends severely bruised, he said to his friend, “I see the footsteps of your anger.” He once accosted a man who was all over unguents and perfumes, “Who is this who smells like a woman?” When Dionysius Metathemenus asked him why he was the only person whom he did not correct, he replied, “Because I have no confidence in you.” A young man was talking a great deal of nonsense, and he said to him, “This is the reason why we have two ears and only one mouth, that we may hear more and speak less.” Once, when he was at an entertainment and remained wholly silent, he was asked what the reason was; and so he bade the person who found fault with him tell the king that there was a man in the room who knew how to hold his tongue; now the people who asked him this were ambassadors who had come from Ptolemy, and who wished to know what report they were to make of him to the king. He was once asked how he felt when people abused him, and he said, “As an ambassador feels when he is sent away without an answer.” Apollonius of Tyre tells us, that when Crates dragged him by the cloak away from Stilpo, he said, “O Crates, the proper way to take hold of philosophers is by the ears; so now do you convince me and drag me by them; but if you use force towards me, my body may be with you, but my mind with Stilpo.” XX. He used to devote a good deal of time to Diodorus, as we learn from Hippobotus; and he studied dialectics under him. And when he had made a good deal of progress he attached himself to Polemo because of his freedom from arrogance, so that it is reported that he said to him, “I am not ignorant, O Zeno, that you slip into the garden-door and steal my doctrines, and then clothe them in a Phœnician dress.” When a dialectician once showed him seven species of dialectic argument in the mowing argument,[82] he asked him how much he charged for them, and when he said “A hundred drachmas,” he gave him two hundred, so exceedingly devoted was he to learning. XXI. They say too, that he was the first who ever employed the word duty (καθῆκον), and who wrote a treatise on the subject. And that he altered the lines of Hesiod thus:— He is the best of all men who submits To follow good advice; he too is good, Who of himself perceives whate’er is fit.[83]