I had come in time to learn that it was a mistake to smile a friendly smile when somebody made a fool of me.

Our intonations contain our philosophy of life, what each of us is constantly telling himself about things.

There is not a woman in the world the possession of whom is as precious as that of the truths which she reveals to us by causing us to suffer.

We only really know what is new, what suddenly introduces to our sensibility a change of tone which strikes us, that for which habit has not yet substituted its pale fac-similes.

As long as men are free to ask what they must, free to say what they think, free to think what they will, freedom can never be lost and science can never regress.

They like my books better in England than in France; a translation would be very successful there.

Love is a striking example of how little reality means to us.