Anaximander used to assert that the primary cause of all things was the Infinite,-not defining exactly whether he meant air or water or anything else.
Diogenes LaertiusWhen asked what learning was the most necessary, he said, Not to unlearn what you have learned!
Diogenes LaertiusOne of the sophisms of Chrysippus was, "If you have not lost a thing, you have it.
Diogenes Laertius