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

The words that enlighten the soul are more precious than jewels. – Hazrat Inayat Khan (1882–1927)

You serve me a slice of raw beef, Heliodorus, and pour me out three cups of wine rawer than the beef, and then you wash me out at once with epigrams. – Lucilius, in The Greek Anthology, Volume IV, “Book XI: The Convivial and Satiric

Whenever we would prepare the mind by a forcible appeal, an opening quotation is a symphony preluding on the chords whose tones we are about to harmonize. – Isaac D’Israeli, “Quotation,” A Second Series of Curiosities of Literature