“I feel, as time goes on, not that the war has produced fewer evils than I feared at the time, for the conviction grows on me that the evils are unmeasured. As year succeeds year we shall more and more see how great was the calamity, how inexplicable the crime which brought that war on humanity. There was one bright side to it. The horrors of that war did at least persuade mankind that some great effort must be made to prevent its repetition. Those who with the facile scepticism or easy cynicism of the arm-chair deride the efforts—humble, imperfect, but honest which are being made all the world over to render the repetition of those horrors impossible must be careful that they do not make themselves shares in the great crime from which we have already so bitterly suffered.”

…sogar daß ihm auch wohl Philosophen, als einer gewissen Veredelung der Menschheit, eine Lobrede halten, uneingedenk des Ausspruchs jenes Griechen: »Der Krieg ist darin schlimm, daß er mehr böse Leute macht, als er deren wegnimmt«.
As quoted in Philosophical Perspectives on Peace: An Anthology of Classical and Modern Sources (1987) by Howard P. Kainz, p. 81
Eternal Peace (1795)

“From George Washington to Lafayette, 15 August 1786,” Founders Online, National Archives http://founders.archives.gov/documents/Washington/04-04-02-0200 Source: The Papers of George Washington, Confederation Series, vol. 4, 2 April 1786 – 31 January 1787, ed. W. W. Abbot. Charlottesville: University Press of Virginia, 1995, pp. 214–216. Page scan http://memory.loc.gov/cgi-bin/ampage?collId=mgw2&fileName=gwpage013.db&recNum=157&tempFile=./temp/~ammem_fmyS&filecode=mgw&next_filecode=mgw&itemnum=1&ndocs=100 at American Memory (Library of Congress)
1780s
Context: Altho’ I pretend to no peculiar information respecting commercial affairs, nor any foresight into the scenes of futurity; yet as the member of an infant-empire, as a Philanthropist by character, and (if I may be allowed the expression) as a Citizen of the great republic of humanity at large; I cannot help turning my attention sometimes to this subject. I would be understood to mean, I cannot avoid reflecting with pleasure on the probable influence that commerce may here after have on human manners & society in general. On these occasions I consider how mankind may be connected like one great family in fraternal ties—I endulge a fond, perhaps an enthusiastic idea, that as the world is evidently much less barbarous than it has been, its melioration must still be progressive—that nations are becoming more humanized in their policy—that the subjects of ambition & causes for hostility are daily diminishing—and in fine, that the period is not very remote when the benefits of a liberal & free commerce will, pretty generally, succeed to the devastations & horrors of war.

Terrorism and War (2002)

2022, Make the war crimes of the Russian military the last manifestation of this evil on earth (3 April 2022)

"Former EDL leader Tommy Robinson arrives at scene of London terror attack" http://www.telegraph.co.uk/news/2017/03/22/former-edl-leader-tommy-robinson-arrives-scene-london-terror/, The Telegraph (22 March 2017)
2017

Source: Group Theory in the Bedroom (2008), Chapter 5, Statistics Of Deadly Quarrels, p. 89

2011-03-14
Glenn Beck
Television
Fox News
Beck: "Evil Is Growing Rapidly"
Media Matters for America
2011-03-14
http://mediamatters.org/mmtv/201103140043
2011-03-19
2010s, 2011

The Future of Civilization (1938)
Context: We see the world as it is now, after these defeats of the League, and we can compare it with what it was six or seven years ago. The comparison is certainly depressing; the contrast is terrible. And we have not yet reached a time when we can estimate the full material losses and human suffering which have been the direct result of the ambitions of one set of powers and the weakness of the others. Nor is there any purpose in attempting to do so. Let us, rather, examine where we now stand and what steps we ought to take in order to strengthen the international system and thrust back again the forces of reaction.
In the first place, let us admit that the first ten years of the League were in a sense unnatural. The horror of war to which I have already alluded was necessarily far more vivid than it can be expected long to remain. That tremendous argument for peace, the horror of war, was a diminishing asset. Most of us, at that time, were, I think, quite well aware that unless we could get the international system into solidly effective working order in the first ten years, we were likely to have great difficulties in the succeeding period, and so it has proved.

A Song of Defeat (1910)