"It follows that except as such policies may ultimately protect our own security, we have no primary interest as a national policy to improve conditions or material welfare in other parts of the world or to change other forms of government. Certainly we should not engage in war to achieve such purposes. I don't mean to say that, as responsible citizens of the world, we should not gladly extend charity or assistance to those in need. I do not mean to say that we should not align ourselves with the advocates of freedom everywhere. We did this kind of thing for many years, and we were respected as the most disinterested and charitable nation in the world.-Senator Robert A Taft (R-OH)
But the contribution of supplies to meet extraordinary droughts or famine or refugee problems or other emergencies is very different from a global plan for general free assistance to all mankind on an organized scale as part of our foreign policy. Such a plan, as carried out today, can only be justified on a temporary basis as part of the battle against communism, to prevent communism from taking over more of the world and becoming a still more dangerous threat to our security. It has been undertaken as an emergency measure. Our foreign policy in ordinary times should not be primarily inspired by the motive of raising the standard of living of millions throughout the world, because that is utterly beyond our capacity. I believe it is impossible with American money, or other outside aid to raise in any substantial degree the standard of living of the millions throughout the world who have created their own problems of soil destruction or overpopulation. Fundamentally, I doubt if the standard of living of any people can be successfully raised to any appreciable degree except by their own efforts. We can advise; we can assist, if the initiative and the desire and the energy to improve themselves is present. But our assistance cannot be a principal motive for foreign policy or a justification for going to war."
A Foreign Policy for Americans (1951)