“Unless Socialists are prepared openly and avowedly to profess that the satisfaction of the needs of each individual must be their very first aim; unless they have prepared public opinion to establish itself firmly at this standpoint, the people in their next attempt to free themselves will once more suffer a defeat.”

Remarks by President Obama at the 70th Anniversary of D-Day at Normandy American Cemetery and Memorial, Omaha Beach, Normandy, France at June 6, 2014 http://www.whitehouse.gov/the-press-office/2014/06/06/remarks-president-obama-70th-anniversary-d-day-omaha-beach-normandy
2014

Speech to the Labour Party Conference in Morecambe (1 October 1952), quoted in The Times (2 October 1952), p. 2
Backbench MP

Source: Made in Japan (1986), p. 160.

Source: Letter to his daughter (1978), p. 15
Context: You cannot be big unless you are prepared to kiss the ground. You cannot defend the soil unless you know the smell of that soil. I know the smell of our soil. I know the rhythm of our rivers. I know the beat of our drums. The theories, the dogmas and the scripts stand outside the gates of history. The dominant factor is the aspiration of the people and the ability to seek total identification with it. Once the significance of the symphony is grasped, the lines fall into place, the dogmas and theories get legs to move in time to the majesty of that music. This does not mean that I am preaching pragmatism. There is a lot of expediency in pragmatism. I am trying to trace the roots of the problems, the genesis of the challenges, the cause of the struggle.

1910s, Nobel lecture (1910)
Context: 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. He should not renounce the right to protect himself by his own efforts until the community is so organized that it can effectively relieve the individual of the duty of putting down violence. So it is with nations. Each nation must keep well prepared to defend itself until the establishment of some form of international police power, competent and willing to prevent violence as between nations. As things are now, such power to command peace throughout the world could best be assured by some combination between those great nations which sincerely desire peace and have no thought themselves of committing aggressions. The combination might at first be only to secure peace within certain definite limits and on certain definite conditions; but the ruler or statesman who should bring about such a combination would have earned his place in history for all time and his title to the gratitude of all mankind.

1980s, Second term of office (1985–1989), Farewell Address (1989)
Context: I hope we once again have reminded people that man is not free unless government is limited. There's a clear cause and effect here that is as neat and predictable as a law of physics: As government expands, liberty contracts.

Speech in the House of Lords (3 November 1915), quoted in The Times (4 November 1915), p. 9
1910s

To many people tend to ask questions that the possible answers to that question might cause anger, hurt, disappointment or displays a weakness that they never were aware of until they got the one answer they weren't prepared for. If you haven't considered that then you might want to refrain from asking it.

vol. 1, p. 69
The Nature and Destiny of Man: A Christian Interpretation (1941)