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Some of the ancients have said, that the same befell Zeno which befalls him who has sour wine which he can sell neither for vinegar nor wine; for his things preferred, as he called them, cannot be disposed of, either as good or as indifferent. But Chrysippus has made the matter yet far more intricate; for he sometimes says, that they are mad who make no account of riches, health, freedom from pain, and integrity of the body, nor take any care to attain them; and having cited that sentence of Hesiod, Work hard, O God-born Perses,Works and Days, 299. he cries out, that it would be a madness to advise the contrary and say, Work not, O God-born Perses.