The Grecian’s maxim would indeed be a sweeping clause in Literature; it would reduce many a giant to a pygmy; many a speech to a sentence; and many a folio to a primer. – C.C. Colton, “Preface,” Lacon: Or, Many Things in Few Words: Addressed To Those

Mr. [Thomas] Gray the poet has often observed to me that if a man were to form a Book of what he had seen and heard himself it must in whatever hands prove a most useful and entertaining one. – Horace Walpole, quoted in Walpoliana, 1800

The borrowing is often honest enough, and comes of magnanimity and stoutness. A great man quotes bravely and will not draw on his invention when his memory serves him with a word as good. – Ralph Waldo Emerson, “Quotation and Originality,” Letters and Social Aims, 1876