But I have long thought that if you knew a column of advertisements by heart, you could achieve unexpected felicities with them. You can get a happy quotation anywhere if you have the eye. – Oliver Wendell Holmes, Jr., 1923, quoted in Holmes-Laski Letters: The Correspond

Quotation brings to many people one of the intensest joys of living…. This innocent vanity often helps us over the hard places in life; it gives us a warm little glow against the coldness of the world and keeps us snug and happy. – Bernard Darwin, May 1941, introduction to The Oxford Dictionary of Quotations

[B]ut in literature, it should be remembered, a thing always becomes his at last who says it best, and thus makes it his own. – James Russell Lowell

Then your words of abuse today may turn into a universally valid principle of denigration, for words are magical formulae. They leave fingermarks behind on the brain, which in the twinkling of an eye becomes the footprints of history. One ought to watch one’s every word. – Franz Kafka, quoted by Gustav Janouch, Conversations with Kafka