"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…"

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

"Men's views of things are very much perverted by their passions."

"Some exalt our species to the skies, and represent man as a kind of human demigod, who derives his origin from heaven, and retains evident marks of his lineage and descent. Others insist upon the blin…"

"The most perfect philosophy of the natural kind is of little use to us, if it do not enable us to correct our errors, and regulate our passions."