"The greatest revolutions are not those which change empires, but those which change the hearts of men."

"The rich, in order to live, must eat; the poor, in order to eat, must live."

"Civilization is a thin and precarious crust, which can be broken through at any moment by the earthquake from below."

"The habit of reading is the only enjoyment in which there is no alloy; it lasts when all other pleasures fade."

"The public good should be the object of the legislator."