After all, all he did was string together a lot of old, well-known quotations. – H.L. Mencken, about Shakespeare

He repeated to himself an old French proverb that he had made up that morning. – F. Scott Fitzgerald

A knowledge of general literature is one of the evidences of an enlightened mind; and to give an apt quotation at a fitting time, proves that the mind is stored with sentential lore that can always be used to great advantage by its possessor. – James Ellis, quoted in Day’s Collacon: An Encyclopædia of Prose Quota

A book of quotations… can never be complete. – Robert M. Hamilton