“Today the expenditure of billions of dollars every year on weapons acquired for the purpose of making sure we never need to use them is essential to keeping the peace. But surely the acquisition of such idle stockpiles — which can only destroy and never create — is not the only, much less the most efficient, means of assuring peace. I speak of peace”
1963, American University speech
Context: I speak of peace because of the new face of war. Total war makes no sense in an age when great powers can maintain large and relatively invulnerable nuclear forces and refuse to surrender without resort to those forces. It makes no sense in an age when a single nuclear weapon contains almost ten times the explosive force delivered by all the allied air forces in the Second World War. It makes no sense in an age when the deadly poisons produced by a nuclear exchange would be carried by wind and water and soil and seed to the far corners of the globe and to generations yet unborn. Today the expenditure of billions of dollars every year on weapons acquired for the purpose of making sure we never need to use them is essential to keeping the peace. But surely the acquisition of such idle stockpiles — which can only destroy and never create — is not the only, much less the most efficient, means of assuring peace. I speak of peace, therefore, as the necessary rational end of rational men. I realize that the pursuit of peace is not as dramatic as the pursuit of war — and frequently the words of the pursuer fall on deaf ears. But we have no more urgent task.
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John F. Kennedy 469
35th president of the United States of America 1917–1963Related quotes

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Satyalok Ashram, Muradnagar, Meerut, India, Baisakhi Festival, April 12, 1971, 710412 (Translated from Hindi)
1970s

Some Reflections on Peace in Our Time (1950)
Context: A favourable climate for peaceful negotiation must be created and can only be created by painstaking, unremitting effort. Conflicting parties must be led to realize that the road to peace can never be traversed by threatening to fight at every bend, by merely being armed to the teeth, or by flushing every bush to find an enemy. An essential first step in a civilized approach to peace in these times would call for a moratorium on recrimination and reproach.
A Language Older Than Words (2000)

“For it can never be that war shall preserve life, and peace destroy it.”
Source: Leviathan