The slaving Poor are incapable of any Principles: Gentlemen may be converted to true Principles, by Time and Experience. The middling Rank of Men have Curiosity and Knowledge enough to form Principles, but not enough to form true ones, or correct any Prejudices that they may have imbib'd: And 'tis among the middling Rank, that Tory Principles do at present prevail most in England.

Part I, Essay 9: Of The Parties of Great Britain; final lines of this essay in the 1741 and 1742 editions of Essays, Moral and Political, they were not included in later editions. - Essays, Moral, Political, and Literary (1741-2; 1748)