All sentiment is right; because sentiment has a reference to nothing beyond itself, and is always real, wherever a man is conscious of it. But all determinations of the understanding are not right; because they have a reference to something beyond themselves, to wit, real matter of fact; and are not always conformable to that standard.

Part I, Essay 23: Of The Standard of Taste - Essays, Moral, Political, and Literary (1741-2; 1748)