Plato affirmed that the soul was immortal and clothed in many bodies successively.

Time is the image of eternity.

Diogenes lighted a candle in the daytime, and went round saying, "I am looking for a man.

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

Diogenes would frequently praise those who were about to marry, and yet did not marry.

Fortune is unstable, while our will is free.

Aristippus being asked what were the most necessary things for well-born boys to learn, said, "Those things which they will put in practice when they become men.