“War is capitalism with the gloves off and many who go to war know it but they go to war because they don't want to be a hero. It takes courage to sit down and be counted.”

CC Presents: Richard Jeni, aired 5 May 2002 http://www.comedycentral.com/video-clips/6kmgg7/comedy-central-presents-brought-up-catholic.
Comedy Central Presents (2002)

Statement about World War II (written in 1943), p. 77
Wars I Have Seen (1945)

Miracle in the Rain (1956)
Screenplays

As quoted in "Respek" http://www.listenonrepeat.com/watch/?v=m1_FAsefZ6o (18 July 2004), Da Ali G Show.
2000s

Source: The Prince (1513), Ch. 3 (as translated by RM Adams). Variants [these can seem to generalize the circumstances in ways that the translation above does not.]: The Romans, foreseeing troubles, dealt with them at once, and, even to avoid a war, would not let them come to a head, for they knew that war is not to be avoided, but is only put off to the advantage of others.
There is no avoiding war; it can only be postponed to the advantage of others.
Context: The Romans never allowed a trouble spot to remain simply to avoid going to war over it, because they knew that wars don't just go away, they are only postponed to someone else's advantage. Therefore, they made war with Philip and Antiochus in Greece, in order not to have to fight them in Italy... They never went by that saying which you constantly hear from the wiseacres of our day, that time heals all things. They trusted rather their own character and prudence — knowing perfectly well that time contains the seeds of all things, good as well as bad.

Remarks on the south lawn of the White House (September 16, 2001) http://georgewbush-whitehouse.archives.gov/news/releases/2001/09/20010916-2.html
2000s, 2001

2015-09-16
CNN REAGAN LIBRARY DEBATE: Later Debate Full Transcript
CNN
http://cnnpressroom.blogs.cnn.com/2015/09/16/cnn-reagan-library-debate-later-debate-full-transcript/
2010s

Speech at TEDGlobal 2010

The Five People You Meet in Heaven (2003)