“It is, thank heaven, difficult if not impossible for the modern European to fully appreciate the force which fanaticism exercises among an ignorant, warlike and Oriental population. Several generations have elapsed since the nations of the West have drawn the sword in religious controversy, and the evil memories of the gloomy past have soon faded in the strong, clear light of Rationalism and human sympathy. Indeed it is evident that Christianity, however degraded and distorted by cruelty and intolerance, must always exert a modifying influence on men's passions, and protect them from the more violent forms of fanatical fever, as we are protected from smallpox by vaccination. But the Mahommedan religion increases, instead of lessening, the fury of intolerance. It was originally propagated by the sword, and ever since, its votaries have been subject, above the people of all other creeds, to this form of madness. In a moment the fruits of patient toil, the prospects of material prosperity, the fear of death itself, are flung aside. The more emotional Pathans are powerless to resist. All rational considerations are forgotten. Seizing their weapons, they become Ghazis—as dangerous and as sensible as mad dogs: fit only to be treated as such. While the more generous spirits among the tribesmen become convulsed in an ecstasy of religious bloodthirstiness, poorer and more material souls derive additional impulses from the influence of others, the hopes of plunder and the joy of fighting. Thus whole nations are roused to arms. Thus the Turks repel their enemies, the Arabs of the Soudan break the British squares, and the rising on the Indian frontier spreads far and wide. In each case civilisation is confronted with militant Mahommedanism. The forces of progress clash with those of reaction. The religion of blood and war is face to face with that of peace. Luckily the religion of peace is usually the better armed.”

Cited by R.F. Young and quoted from Goel, S. R. (2016). History of Hindu-Christian encounters, AD 304 to 1996. Chapter 10. ISBN 9788185990354 https://web.archive.org/web/20120501043412/http://voiceofdharma.org/books/hhce/

Aliens Cause Global Warming (2003)

1900s, The Moral Equivalent of War (1906)
Context: We inherit the warlike type; and for most of the capacities of heroism that the human race is full of we have to thank this cruel history. Dead men tell no tales, and if there were any tribes of other type than this they have left no survivors. Our ancestors have bred pugnacity into our bone and marrow, and thousands of years of peace won't breed it out of us. The popular imagination fairly fattens on the thought of wars. Let public opinion once reach a certain fighting pitch, and no ruler can withstand it. In the Boer war both governments began with bluff, but they couldn't stay there; the military tension was too much for them.

Source: Cosmos (1980), p. 318
Context: The choice is with us still, but the civilization now in jeopardy is all humanity. As the ancient myth makers knew, we are children equally of the earth and the sky. In our tenure on this planet we've accumulated dangerous evolutionary baggage — propensities for aggression and ritual, submission to leaders, hostility to outsiders — all of which puts our survival in some doubt. But we've also acquired compassion for others, love for our children and desire to learn from history and experience, and a great soaring passionate intelligence — the clear tools for our continued survival and prosperity. Which aspects of our nature will prevail is uncertain, particularly when our visions and prospects are bound to one small part of the small planet Earth. But up there in the immensity of the Cosmos, an inescapable perspective awaits us. There are not yet any obvious signs of extraterrestrial intelligence and this makes us wonder whether civilizations like ours always rush implacably, headlong, toward self-destruction. National boundaries are not evident when we view the Earth from space. Fanatical ethnic or religious or national chauvinisms are a little difficult to maintain when we see our planet as a fragile blue crescent fading to become an inconspicuous point of light against the bastion and citadel of the stars. Travel is broadening.

in Hendricks, V: “500CC Computer Citations”, King’s College Publications, London,2005.

Arrow (1984) "November 1984 lecture at Trinity University". Lecture presented November 5, 1984.
1970s-1980s

Speech at Guildhall, 9 November 1914; see
Context: We shall never sheathe the sword, which we have not lightly drawn, until Belgium recovers in full measure all, and more than all, that she has sacrificed; until France is adequately secured against the menace of aggression; until the rights of the smaller nationalities of Europe are placed upon an unassailable foundation; and until the military domination of Prussia is wholly and finally destroyed.

1860s, Second State of the Union address (1862)