“It is true that the techniques of war are constantly "improved" as the genius of an age of invention is put in the service of the war machine. But that is not what is most disturbing.”

Source: Out Of The Crisis (1982), p. 23 (Point 5 from the "Condensation of the 14 Points for Management" presented in Chapter 2)

Source: A Heap o' Livin' (1916), Our Duty to Our Flag, stanzas 1-2, p. 59.

Source: Morning Star (2016), Ch. 25: Exodus

Pop Chronicles, Show 19 - Blowin' in the Wind: Pop discovers folk music http://digital.library.unt.edu/ark:/67531/metadc19769/m1/, interview recorded 12.3.1967 http://www.library.unt.edu/resolveuid/24bc6899959ba29ac6feca22c5ad8ed9

First Report, p. 34
U.S. Navy at War, 1941-1945: Official Reports to the Secretary of the Navy (1946)

Quote from 'Life and Work', in Hugo Ball on Wikipedia
his remark after witnessing the invasion of Belgium by the German armies, in the start of World War 1. in 1914
before 1916

1961, UN speech
Context: Mankind must put an end to war — or war will put an end to mankind.
So let us here resolve that Dag Hammarskjold did not live, or die, in vain. Let us call a truce to terror. Let us invoke the blessings of peace. And as we build an international capacity to keep peace, let us join in dismantling the national capacity to wage war.
Context: We meet in an hour of grief and challenge. Dag Hammarskjold is dead. But the United Nations lives. His tragedy is deep in our hearts, but the task for which he died is at the top of our agenda. A noble servant of peace is gone. But the quest for peace lies before us.
The problem is not the death of one man — the problem is the life of this organization. It will either grow to meet the challenges of our age, or it will be gone with the wind, without influence, without force, without respect. Were we to let it die, to enfeeble its vigor, to cripple its powers, we would condemn our future. For in the development of this organization rests the only true alternative to war — and war appeals no longer as a rational alternative. Unconditional war can no longer lead to unconditional victory. It can no longer serve to settle disputes. It can no longer concern the great powers alone. For a nuclear disaster, spread by wind and water and fear, could well engulf the great and the small, the rich and the poor, the committed and the uncommitted alike. Mankind must put an end to war — or war will put an end to mankind.
So let us here resolve that Dag Hammarskjold did not live, or die, in vain. Let us call a truce to terror. Let us invoke the blessings of peace. And as we build an international capacity to keep peace, let us join in dismantling the national capacity to wage war.

De Re Militari (also Epitoma Rei Militaris), Book III, "Dispositions for Action"
Context: It is the nature of war that what is beneficial to you is detrimental to the enemy and what is of service to him always hurts you. It is therefore a maxim never to do, or to omit doing, anything as a consequence of his actions, but to consult invariably your own interest only. And you depart from this interest whenever you imitate such measures as he pursues for his benefit. For the same reason, it would be wrong for him to follow such steps as you take for your advantage. (General Maxims)

Mycetes, Part 1, Act II, scene iv, line 1
Tamburlaine (c. 1588)