“We must establish on broad and solid foundations a National Health Service. Here let me say that there is no finer investment for any community than putting milk into babies. Healthy citizens are the greatest asset any country can have.”

Prime Minister's Questions (1 December 1981) http://www.margaretthatcher.org/document/104755
First term as Prime Minister

1920s, The Genius of America (1924)
Context: It is a truism, of course, but it is none the less a fact which we must never forget, that this continent and this American community have been blessed with an unparalleled capacity for assimilating peoples of varying races and nations. The continuing migration which in three centuries has established here this nation of more than a hundred million, has been the greatest that history records as taking place in any such brief period. Viewing it historically, we find that the migration to America was little more than a westward projection of the series of great movements of peoples, by which Europe was given its present population. But there is a striking difference between the migrations into Europe, and the later movements of the same racial elements to the New World.

As quoted in Sicko is Socko, Richard, Corliss, Time, 19 May 2007 http://www.time.com/time/arts/article/0,8599,1623337,00.html,
2007

Source: https://clusterbcs.com/en/in-memoriam-kirk-r-smith-1947-2020-2/

Speech to Conservative Party Conference (8 October 1982) http://www.margaretthatcher.org/document/105032
First term as Prime Minister

Broadcast (4 July 1948), quoted in The Times (5 July 1948), p. 6
Prime Minister

Source: Fool Moon

First State of the Union Address (30 January 1961)
1961
Context: I have pledged myself and my colleagues in the cabinet to a continuous encouragement of initiative, responsibility and energy in serving the public interest. Let every public servant know, whether his post is high or low, that a man's rank and reputation in this Administration will be determined by the size of the job he does, and not by the size of his staff, his office or his budget. Let it be clear that this Administration recognizes the value of dissent and daring — that we greet healthy controversy as the hallmark of healthy change. Let the public service be a proud and lively career. And let every man and woman who works in any area of our national government, in any branch, at any level, be able to say with pride and with honor in future years: "I served the United States government in that hour of our nation's need." For only with complete dedication by us all to the national interest can we bring our country through the troubled years that lie ahead. Our problems are critical. The tide is unfavorable. The news will be worse before it is better. And while hoping and working for the best, we should prepare ourselves now for the worst.