To improve is to change, so to be perfect is to have changed often.
Winston Churchill (June 23, 1925), His complete speeches, 1897–1963, edited by Robert Rhodes James, Chelsea House ed., vol. 4 (1922–1928), p. 3706. During a debate with Philip Snowden, 1st Viscount Snowden.
Often misquoted as: To improve is to change, to be perfect is to change often.
Early career years (1898–1929)