"The greatest evils that befall man come from man himself."

"The sovereign, being formed wholly of the individuals who compose it, has no interest a part from theirs."

"Nature has made me different from all other men. I alone know my heart, and I alone know men. He who dares to say that he is like me is a liar."

"It is not good for man to be alone; and I say it is not good for him to be a philosopher."

"I know what is good, and I do it not; I know what is evil, and I follow it."