I shall raise my voice as loud and as often as I believe it to be in the interest of the American people.
Source, in full
Address to the Massachusetts legislature, Boston, Massachusetts (25 July 1951), as published in The General and the President (1951), by Richard Halworth Rovere; also in Time (6 August 1951), and General MacArthur Speeches and Reports 1908-1964 (2000) by Ed Imparato, p. 180