Rational free spirits are the light brigade who go on ahead and reconnoiter the ground which the heavy brigade of the orthodox will eventually occupy.

One should never trust a person who, while assuring you of something, puts his hands on his heart.

Doubt must be no more than vigilance, otherwise it can become dangerous.

Affectation is a very good word when someone does not wish to confess to what he would none the less like to believe of himself.

A man has virtues enough if he deserves pardon for his faults on account of them.

Everyone is a genius at least once a year.

Whenever he composes a critical review, I have been told, he gets an enormous erection.