That which has always been accepted by everyone, everywhere, is almost certain to be false.

Conscience reigns but it does not govern.

Great things are accomplished by those who do not feel the impotence of man. This is a precious gift.

Breath, dreams, silence, invincible calm, you triumph.

In the physical world, one cannot increase the size or quantity of anything without changing its quality. Similar figures exist only in pure geometry.

Nothing is more natural than mutual misunderstanding; the contrary is always surprising. I believe that one never agrees on anything except by mistake, and that all harmony among human beings is the happy fruit of an error.

The only treaties that ought to count are those which would effect a settlement between ulterior motives.