"The only good is knowledge, and the only evil is ignorance."

"Little things console us because little things afflict us."

"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…"

"The proper study of mankind is man."

"The greater the mind, the more it is capable of complex thoughts."