"The most perfect philosophy of the natural kind only staves off our ignorance a little longer: as perhaps the most perfect philosophy of the moral or metaphysical kind serves only to discover more ope…"

"All doctrines, however, are not to be admitted on the same footing. Each must be tried by its own proper evidence; and as this evidence is more or less convincing, we must assent to it more or less st…"

"The savage tribes of America, Africa, and Asia are all idolaters. Not a single exception to this rule. Insomuch, that, were a traveller to transport himself into any unknown region; if he found inhabi…"

"The greater part of mankind are more governed by interest than by reason."

"All systems of morality, which have hitherto been advanced, are founded on the principle that morality is something real and intrinsic."