An epigram is a gag that’s played Carnegie Hall. – Oscar Levant (Thanks, Garson O’Toole of quoteinvestigator.com!)

Someone — Cyril Connolly? Ezra Pound? — once said that anything that can be read twice is literature; I would say that anything that bears saying twice is quotable. – Joseph Epstein, “Quotatious,” A Line Out for a Walk: Familiar Essays, 1991

My quarrel with him is, that his works contain nothing worth quoting; and a book that furnishes no quotations, is me judice, no book,—it is a plaything. – Thomas Love Peacock, Crotchet Castle, 1831 (The Rev. Dr. Folliott)

For I often please myself with the fancy, now that I may have saved from oblivion the only striking passage in a whole volume, and now that I may have attracted notice to a writer undeservedly forgotten. – Samuel Taylor Coleridge