“If we are to have peace, we must learn loyalty to a larger group. And before we can learn loyalty, the thing to which we are to be loyal must be created.”
Source: Man, the State, and War (1959), Chapter III, Some Implications Of The First Image, p. 69
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Kenneth N. Waltz 26
American political scientist and international relations th… 1924–2013Related quotes

“For the things we have to learn before we can do, we learn by doing.”
Book II, 1103a.33: Cited in: Oxford Dictionary of Scientific Quotations (2005), 21:9
Nicomachean Ethics
Source: The Nicomachean Ethics

Speech to the Labour Party Conference in Southport (2 October 1934) , quoted in Talus, Your Alternative Government (London: Eyre and Spottiswoode, 1945), p. 17 and D. M. Touche, Britain's Lost Victory (London: The Individualist Bookshop, 1941).
1930s

Source: Tomorrow Is Now (1963), p. xv
Context: We face the future fortified with the lessons we have learned from the past. It is today that we must create the world of the future. Spinoza, I think, pointed out that we ourselves can make experience valuable when, by imagination and reason, we turn it into foresight.

Speech at a youth rally in Berlin http://der-fuehrer.org/reden/english/34-05-01.htm, 1 May 1934
1930s

1940s, Victory broadcast (1945)
Context: We have known the bitterness of defeat and the exultation of triumph, and from both we have learned there can be no turning back. We must go forward to preserve in peace what we won in war.
A new era is upon us. Even the lesson of victory itself brings with it profound concern, both for our future security and the survival of civilization. The destructiveness of the war potential, through progressive advances in scientific discovery, has in fact now reached a point which revises the traditional concepts of war.

Brain-Washing: A Synthesis of the Russian Textbook on Psychopolitics

Willie's Question
The Disciple and Other Poems (1867)