Always verify quotations! – Martin Joseph Routh, quoted in Catholic World: A Monthly Magazine of General Lit

I would fain coin wisdom,—mould it, I mean, into maxims, proverbs, sentences, that can easily be retained and transmitted. Would that I could denounce and banish from the language of men—as base money—the words by which they cheat and are cheated! – Joseph Joubert, translated from French

A learned historian declared to me of a contemporary, that the latter had appropriated his researches; he might, indeed, and he had a right to refer to the same originals; but if his predecessor had opened the sources for him, gratitude is not a silent virtue. – Isaac D’Israeli, “Quotation,” A Second Series of Curiosities of Literature