Exactly as each man, while doing first his duty to his wife and the children within his home, must yet, if he hopes to amount to much, strive mightily in the world outside his home, so our nation, while first of all seeing to its own domestic well-being, must not shrink from playing its part among the great nations without. Our duty may take many forms in the future as it has taken many forms in the past. Nor is it possible to lay down a hard-and-fast rule for all cases. We must ever face the fact of our shifting national needs, of the always-changing opportunities that present themselves. But we may be certain of one thing: whether we wish it or not, we cannot avoid hereafter having duties to do in the face of other nations. All that we can do is to settle whether we shall perform these duties well or ill.
Theodore Roosevelt