He who trains his tongue to quote the learned sages will be known, far and wide, as a smart-ass. – Howard Kandel, The Power of Positive Pessimism: Proverbs for Our Times, 1964

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

The adventitious beauty of poetry may be felt in the greater delight which a verse gives in happy quotation than in the poem. – Ralph Waldo Emerson, “Art”