The only possible paradises are those we have lost

I drank a second mouthful in which I find nothing more than in the first, then a third which gives me rather less than the second. It is time to stop; the potion is losing its magic.

A work should convey its entire meaning by itself, imposing it on the spectator even before he knows what the subject is.

I do my intellectual work inside myself, and once I am with my fellow creatures it is more or less a matter of indifference to me whether or not they are intelligent as long as they are kind, sincere, etc.

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.

We are healed of a suffering only by experiencing it to the full.

A powerful idea communicates some of its strength to him who challenges it.