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

Is all literature eavesdropping, and all art Chinese imitation? our life a custom, and our body borrowed, like a beggar’s dinner, from a hundred charities? – Ralph Waldo Emerson, “Quotation and Originality,” Letters and Social Aims, 1876

Reframing an extract as a quotation constitutes a kind of coauthorship. With no change in wording, the cited passage becomes different. I imagine that the thrill of making an anthology includes the opportunity to become such a coauthor. – Gary Saul Morson, The Words of Others: From Quotations to Culture, 2011

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