Thomas Gordon, Cato's Letter No. 117 — Of the Abuse of Words… (1723)
“ All have exerted themselves with great efforts of exhortation, reason, eloquence, and wit, against this reigning vice; but I conceive, that they have all missed the mark. Indeed, in the larger sense of the word, I think it impossible for any man to act upon any other motive than his own interest: For every pursuit that we make must have for its end the gratification of some appetite, or the avoiding of some evil which we fear; and, in truth, when we say that any man is self-interested, we mean only, that he is not enough in his own interest. ”
