Euripides says,-Who knows but that this life is really death,And whether death is not what men call life?

Aristippus said that a wise man's country was the world.

The mountains too, at a distance, appear airy masses and smooth, but seen near at hand they are rough.

There are many marvellous stories told of Pherecydes. For it is said that he was walking along the seashore at Samos, and that seeing a ship sailing by with a fair wind, he said that it would soon sink; and presently it sank before his eyes. At another time he was drinking some water which had been drawn up out of a well, and he foretold that within three days there would be an earthquake; and there was one.

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.

When asked what learning was the most necessary, he said, “Not to unlearn what you have learned!”

Ignorance plays the chief part among men, and the multitude of words.