“I believe we should go to the moon. But I think every citizen of this country as well as the Members of the Congress should consider the matter carefully in making their judgment, to which we have given attention over many weeks and months, because it is a heavy burden, and there is no sense in agreeing or desiring that the United States take an affirmative position in outer space, unless we are prepared to do the work and bear the burdens to make it successful. If we are not, we should decide today and this year.”

1963, President John F. Kennedy's last formal speech and public words
Context: I think the United States should be a leader. A country as rich and powerful as this which bears so many burdens and responsibilities, which has so many opportunities, should be second to none. And in December, while I do not regard our mastery of space as anywhere near complete, while I recognize that there are still areas where we are behind — at least in one area, the size of the booster — this year I hope the United States will be ahead. And I am for it. We have a long way to go. Many weeks and months and years of long, tedious work lie ahead. There will be setbacks and frustrations and disappointments. There will be, as there always are, pressures in this country to do less in this area as in so many others, and temptations to do something else that is perhaps easier. But this research here must go on. This space effort must go on. The conquest of space must and will go ahead. That much we know. That much we can say with confidence and conviction.

Source: "The Black Manifesto" (1969), p. 116

1961, Speech to Special Joint Session of Congress
Context: I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the moon and returning him safely to the earth. No single space project in this period will be more impressive to mankind, or more important for the long-range exploration of space; and none will be so difficult or expensive to accomplish. We propose to accelerate the development of the appropriate lunar space craft. We propose to develop alternate liquid and solid fuel boosters, much larger than any now being developed, until certain which is superior. We propose additional funds for other engine development and for unmanned explorations — explorations which are particularly important for one purpose which this nation will never overlook: the survival of the man who first makes this daring flight. But in a very real sense, it will not be one man going to the moon — if we make this judgment affirmatively, it will be an entire nation. For all of us must work to put him there.

May 1961 in address to joint session of congress https://www.jfklibrary.org/learn/about-jfk/historic-speeches/address-to-joint-session-of-congress-may-25-196125
1961

Source: 1961, Speech to Special Joint Session of Congress

"Teacher"
The Children's Story (1982)

In [Booker, Cory, United: Thoughts on Finding Common Ground and Advancing the Common Good, https://books.google.com/books?id=iFekDQAAQBAJ, 2017, Random House Publishing Group, 978-1-101-96518-4], as quoted in [Yanklowitz, Rabbi Shmuly, Standing Together In the Era of National Division: Review of United by Cory Booker, https://www.huffingtonpost.com/rabbi-shmuly-yanklowitz/standing-together-in-the-_b_9359900.html, 21 August 2018, The Huffington Post, March 3, 2016]
2016