When Thales was asked what was difficult, he said, To know one's self. And what was easy, To advise another.
Pittacus said that half was more than the whole.
Aristippus said that a wise man's country was the world.
As some say, Solon was the author of the apophthegm, "Nothing in excess.
Bion used to say that the way to the shades below was easy; he could go there with his eyes shut.
Apollodorus says, "If any one were to take away from the books of Chrysippus all the passages which he quotes from other authors, his paper would be left empty.