"Custom, then, is the great guide of human life."

"The chief spring or actuating principle of the human mind is pleasure or pain."

"The identity that we ascribe to things is only a fictitious one, established by the mind, not a peculiar nature belonging to what we're talking about."

"In order, therefore, to impose a due restraint on the female sex, we must attach a peculiar degree of shame to their infidelity, above what arises merely from its injustice, and must bestow proportion…"

"When we run over libraries, persuaded of these principles, what havoc must we make? If we take in our hand any volume; of divinity or school metaphysics, for instance; let us ask, Does it contain any …"