“While we are thus desirous of the economic welfare of other countries in part because of its relation to world peace, we ought to remember that our own Government owes a great duty to the American people in this direction. It is for this reason in part that I have insisted upon a policy of constructive economy in the national administration. If we can make the circumstances of the people easy, if we can relieve them of the burden of heavy taxation, we shall have contributed to that contentment and peace of mind which will go far to render them immune from any envious inclination toward other countries. If the people prosper in their business, they will be the less likely to resort to the irritating methods of competition in foreign trade out of which arise mutual misunderstandings and animosities. They will not be driven to the employment of sharp practices in order to support and maintain their own position. Being amply supplied with their own resources, they will not be so inclined to turn covetous eyes toward the resources of other nations.”

1920s, Ways to Peace (1926)

Speech in Saarbrücken (9 October 1938), quoted in The Times (26 September 1939), p. 10
1930s

1920s, Toleration and Liberalism (1925)
Context: The generally expressed desire of 'America first' can not be criticized. It is a perfectly correct aspiration for our people to cherish. But the problem which we have to solve is how to make America first. It can not be done by the cultivation of national bigotry, arrogance, or selfishness. Hatreds, jealousies, and suspicions will not be productive of any benefits in this direction. Here again we must apply the rule of toleration. Because there are other peoples whose ways are not our ways, and whose thoughts are not our thoughts, we are not warranted in drawing the conclusion that they are adding nothing to the sum of civilization. We can make little contribution to the welfare of humanity on the theory that we are a superior people and all others are an inferior people. We do not need to be too loud in the assertion of our own righteousness. It is true that we live under most favorable circumstances. But before we come to the final and irrevocable decision that we are better than everybody else we need to consider what we might do if we had their provocations and their difficulties. We are not likely to improve our own condition or help humanity very much until we come to the sympathetic understanding that human nature is about the same everywhere, that it is rather evenly distributed over the surface of the earth, and that we are all united in a common brotherhood. We can only make America first in the true sense which that means by cultivating a spirit of friendship and good will, by the exercise of the virtues of patience and forbearance, by being 'plenteous in mercy', and through progress at home and helpfulness abroad standing as an example of real service to humanity.

Address at Mechanics' Pavilion San Francisco May 13 1903 books.google.de http://books.google.de/books?id=zSJNPOphC_MC&pg=PA98
Quoted in The Audacity of Hope (2006) by Barack Obama, p. 282 as follows: The United States of America has not the option as to whether it will or it will not play a great part in the world … It must play a great part. All that it can decide is whether it will play that part well or badly.
1910s

1920s, The Reign of Law (1925)

Speech delivered outside outside 10 Downing Street, announcing that he would resign as prime minister after British voters chose to leave the European Union in a referendum (June 24, 2016), see David Cameron's resignation speech in full http://www.cnn.com/2016/06/24/europe/david-cameron-full-resignation-speech/ (published by CNN)
2010s, 2016

The Bacon Resolutions http://www.msc.edu.ph/centennial/bacon.html (September 1, 1900).

1920s, Ways to Peace (1926)

1920s, Second State of the Union Address (1924)