Sec. VI. And since not only the things that in themselves shake and turn them in the opposite direction are more powerful in the case of weak philosophers, but also the serious advice of friends, and the playful and jeering objections of adversaries bend and soften people, and have ere now shaken some out of philosophy altogether, it will be no slight indication of one's progress in virtue if one takes all this very calmly, and is neither disturbed nor aggravated by people who tell us and mention to us that some of our former comrades are flourishing in kings' courts, or have married wives with dowries, or are attended by a crowd of friends when they come down to the forum to solicit some office or advocateship. He that is not moved or affected by all this is already plainly one upon whom philosophy has got a right hold; for it is impossible that we should cease to be envious of what most people admire, unless the admiration of virtue was strongly implanted in us. For over-confidence may be generated in some by anger and folly, but to despise what men admire is not possible without a true and steady elevation of mind. And so people in such a condition of mind, comparing it with that of others, pride themselves on it, and say with Solon, "We would not change virtue for wealth, for while virtue abides, wealth changes hands, and now one man, now another, has it."[263] And Diogenes compared his shifting about from Corinth to Athens, and again from Thebes to Corinth, to the different residences of the King of Persia, as his spring residence at Susa, his winter residence at Babylon, and his summer residence in Media. And Agesilaus said of the great king, "How is he better than me, if he is not more upright?" And Aristotle, writing to Antipater about Alexander, said, "that he ought not to think highly of himself because he had many subjects, for anyone who had right notions about the gods was entitled to think quite as highly of himself." And Zeno, observing that Theophrastus was admired for the number of his pupils,[264] said, "His choir is, I admit, larger than mine, but mine is more harmonious."