If you don't stand for something you will fall for anything.

Intelligence is a moral category.

Man's sensitivity to the little things and insensitivity to the greatest are the signs of a strange disorder.

Moderation in temper is always a virtue; but moderation in principle is always a vice.

An intelligent hell would be better than a stupid paradise.

Don't raise your voice, improve your argument.

Act enthusiastic and you will be enthusiastic

Desire is the very essence of man.

The greatest pride, or the greatest despondency, is the greatest ignorance of one's self.

Those who know, do. Those that understand, teach.

Chaos is a name for any order that produces confusion in our minds.

The pendulum of the mind oscillates between sense and nonsense, not between right and wrong.

If you don't know where you're from, you'll have a hard time saying where you're going.

Knowledge speaks, but wisdom listens

Circumstances do not make a man, they reveal him.

The one you buy will be the only one that doesn't work.

It is not the strength, but the duration, of great sentiments that makes great men.

Accuracy is the twin brother of honesty; inaccuracy, of dishonesty.

If you are neutral in situations of injustice, you have chosen the side of the oppressor.

One of the truest tests of integrity is its blunt refusal to be compromised.

We may encounter many defeats but we must not be defeated.