Imitation is the sincerest of flattery.

There are two principles of established acceptance in morals; first, that self-interest is the mainspring of all of our actions, and secondly, that utility is the test of their value.

Men are born with two eyes, but with one tongue, in order that they should see twice as much as they say.

What would you do if you knew for sure that no one would ever find out?

The upright, if he suffer calumny to move him, fears the tongue of man more than the eye of God.

I have found by experience that they who have spent all their lives in cities, improve their talents but impair their virtues; and strengthen their minds but weaken their morals.

He that sympathizes in all the happiness of others, perhaps himself enjoys the safest happiness.