“In Roosevelt’s view, the international system was in constant flux. Ambition, self-interest, and war were not simply the products of foolish misconceptions of which Americans could disabuse traditional rulers; they were a natural human condition that required purposeful American engagement in international affairs. International society was like a frontier settlement without an effective police force: In new and wild communities where there is violence, an honest man must protect himself; and until other means of securing his safety are devised, it is both foolish and wicked to persuade him to surrender his arms while the men who are dangerous to the community retain theirs. This essentially Hobbesian analysis delivered in, of all occasions, a Nobel Peace Prize lecture, marked America’s departure from the proposition that neutrality and pacific intent were adequate to serve the peace. For Roosevelt, if a nation was unable or unwilling to act to defend its own interests, it could not expect others to respect them.”