When everything has its proper place in our minds, we are able to stand in equilibrium with the rest of the world.

A microscopic phantom of the universe; this is all that we are able to be.

There is no respect for others without humility in one's self.

To do what is impossible for talent is the mark of genius.

It would have been a joy to me to be smiled upon, loved, encouraged, welcomed, and to obtain what I was so ready to give, kindness and goodwill. But to hunt down consideration and reputation - to force the esteem of others - seemed to me an effort unworthy of myself, almost a degradation.

Common sense is the measure of the possible; it is composed of experience and prevision; it is calculation applied to life.

[T]he habit of scientific analysis ... exhausts the material offered to it.