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.

Xenophanes speaks thus:-And no man knows distinctly anything,And no man ever will.

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

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

He used to say that it was better to have one friend of great value than many friends who were good for nothing.

Diogenes said once to a person who was showing him a dial, "It is a very useful thing to save a man from being too late for supper.

Fortune is unstable, while our will is free.