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.
Franklin D. RooseveltWhen you see a rattlesnake poised to strike, you do not wait until he has struck to crush him.
Franklin D. Roosevelt