Nations like individuals do not always see alike or think alike, and international cooperation and progress are not helped by any Nation assuming that it has a monopoly of wisdom or of virtue. In the future world the misuse of power, as implied in the term "power politics," must not be a controlling factor in international relations. That is the heart of the principles to which we have subscribed. We cannot deny that power is a factor in world politics any more than we can deny its existence as a factor in national politics. But in a democratic world, as in a democratic Nation, power must be linked with responsibility, and obliged to defend and justify itself within the framework of the general good. 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. In our disillusionment after the last war we preferred international anarchy to international cooperation with Nations which did not see and think exactly as we did. We gave up the hope of gradually achieving a better peace because we had not the courage to fulfill our responsibilities in an admittedly imperfect world. We must not let that happen again, or we shall follow the same tragic road again--the road to a third world war. We can fulfill our responsibilities for maintaining the security of our own country only by exercising our power and our influence to achieve the principles in which we believe and for which we have fought. In August, 1941, Prime Minister Churchill and I agreed to the principles of the Atlantic Charter, these being later incorporated into the Declaration by United Nations of January 1, 1942. At that time certain isolationists protested vigorously against our right to proclaim the principles--and against the very principles themselves. Today, many of the same people are protesting against the possibility of violation of the same principles. It is true that the statement of principles in the Atlantic Charter does not provide rules of easy application to each and every one of this war-torn world's tangled situations. But it is a good and a useful thing-- it is an essential thing--to have principles toward which we can aim. And we shall not hesitate to use our influence--and to use it now--to secure so far as is humanly possible the fulfillment of the principles of the Atlantic Charter. We have not shrunk from the military responsibilities brought on by this war. We cannot and will not shrink from the political responsibilities which follow in the wake of battle.