Pythagoras used to say that he had received as a gift from Mercury the perpetual transmigration of his soul, so that it was constantly transmigrating and passing into all sorts of plants or animals.

Arcesilaus had a peculiar habit while conversing of using the expression, "My opinion is," and "So and so will not agree to this.

When Thales was asked what was difficult, he said, To know one's self. And what was easy, To advise another.

One of the sophisms of Chrysippus was, "If you have not lost a thing, you have it.

Bury me on my face," said Diogenes; and when he was asked why, he replied, "Because in a little while everything will be turned upside down.

If appearances are deceitful, then they do not deserve any confidence when they assert what appears to them to be true.

Fortune is unstable, while our will is free.