"The error is not in the senses, but in the understanding."

"If we would satisfy ourselves, therefore, concerning the nature of that evidence, which assures us of matters of fact, we must enquire how we arrive at the knowledge of cause and effect."

"Barbarous nations display this superiority, by reducing their females to the most abject slavery; by confining them, by beating them, by selling them, by killing them."

"The most perfect politician, who has ever existed, is he who has been able to unite the most opposite qualities, and to reconcile the most contradictory interests."

"All human life must perish, were his principles to prevail. All discourse, all action would immediately cease, and men remain in a total lethargy, till the necessities of nature, unsatisfied, put an e…"