Franklin D. Roosevelt Quote
Perfectionism, no less than isolationism or imperialism or power politics, may obstruct the paths to international peace. Let us not forget that the retreat to isolationism a quarter of a century ago was started not by a direct attack against international cooperation but against the alleged imperfections of the peace.
The Public Papers and Addresses of Franklin D. Roosevelt: Victory and the threshold of peace, 1944-45 (ed. 1938)