Libraries can in general be too narrow or too wide for the soul.

It is astonishing how much the word infinitely is misused: everything is infinitely more beautiful, infinitely better, etc. The concept must have something pleasing about it, or its misuse could not have become so general.

One of the greatest creations of the human mind is the art of reviewing books without having read them.

Cautiousness in judgment is nowadays to be recommended to each and every one: if we gained only one incontestable truth every ten years from each of our philosophical writers the harvest we reaped would be sufficient.

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.

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

As soon as you know a man to be blind, you imagine that you can see it from his back.