To appreciate and use correctly a valuable maxim requires a genius, a vital appropriating exercise of mind, closely allied to that which first created it. – William Rounseville Alger, “The Utility and the Futility of Aphorisms,” The Atla
Gnomic wisdom, however, is notoriously polychrome, and proverbs depend for their truth entirely on the occasion they are applied to. Almost every wise saying has an opposite one, no less wise, to balance it… – George Santayana, “Chapter VIII: Prerational Morality,” The Life of Reason: Volu