It is not easy to distinguish between true and false affection, unless there occur one of those crises in which, as gold is tried by fire, so a faithful friendship may be tested by danger.

It is graceful in a man to think and to speak with propriety, to act with deliberation, and in every occurrence of life to find out and persevere in the truth. On the other hand, to be imposed upon, to mistake, to falter, and to be deceived, is as ungraceful as to rave or to be insane.

The hope of impunity is the greatest inducement to do wrong.

The precepts of the law are these: to live honestly, to injure no one, and to give everyone else his due.

Let your desires be ruled by reason.

There is no opinion so stupid that it can't be expressed by some philosopher.

Rightly defined philosophy is simply the love of wisdom.