This is the law of benefits between men; the one ought to forget at once what was given, and the other ought never to forget what he has received.

You should keep on learning as long as there is something you do not know.

Plato once wanted to punish one of his slaves and asked his nephew to do the actual whipping for he himself did not own his anger.

To give and to lose is nothing; but to lose and to give still is the part of a great mind.

Fortune can take away riches, but not courage.

No one's so old that he mayn't with decency hope for one more day.

All cruelty springs from weakness.