"If we would purify the heart, we must purify the understanding."

"Imagination decides everything."

"We are so presumptuous that we would like to be known by all the world, and even by people who will come after us when we are no more."

"What a chimera then is man! What a novelty! What a monster, what a chaos, what a contradiction, what a prodigy! Judge of all things, imbecile worm of the earth, depository of truth, a sewer of uncerta…"

"Man is equally incapable of seeing the nothingness from which he emerges and the infinity in which he is engulfed."