One must first learn to live oneself before one blames others.

The secret of man's being is not only to live but to have something to live for.

If he's honest, he'll steal; if he's human, he'll murder; if he's faithful, he'll deceive.

Homeopathic doses are perhaps the strongest.

I swear to you, sirs, that excessive consciousness is a disease--a genuine, absolute disease.

I think the devil doesn't exist, but man has created him, he has created him in his own image and likeness.

Man is a creative animal, doomed to strive toward a goal, engaged in full-time engineering.