“Thucydides, an Athenian, wrote the history of the war between the Peloponnesians and the Athenians, beginning at the moment that it broke out, and believing that it would be a great war, and more worthy of relation than any that had proceeded it.”

1963, Limited Nuclear Test Ban Treaty speech
Context: A war today or tomorrow, if it led to nuclear war, would not be like any war in history. A full-scale nuclear exchange, lasting less than 60 minutes, with the weapons now in existence, could wipe out more than 300 million Americans, Europeans, and Russians, as well as untold numbers elsewhere. And the survivors, as Chairman Khrushchev warned the Communist Chinese, "the survivors would envy the dead." For they would inherit a world so devastated by explosions and poison and fire that today we cannot even conceive of its horrors. So let us try to turn the world away from war. Let us make the most of this opportunity, and every opportunity, to reduce tension, to slow down the perilous nuclear arms race, and to check the world's slide toward final annihilation.

Address to the nation from the White House http://www.reagan.utexas.edu/archives/speeches/1984/11684a.htm (16 January 1984)
1980s, First term of office (1981–1985)

As quoted in Talks with Mussolini, Emil Ludwig, Boston, MA, Little, Brown and Company (1933), p. 84, Interview took place between March 23 and April 4, 1932
1930s

Source: The Death of Tragedy (1961), Ch. I (p. 6).

The History of Freedom in Antiquity (1877)

Something About a Soldier (1940)

Part III, The Mayors, section 1
The Foundation series (1951–1993), Foundation (1951)

2000s, Where the Right Went Wrong (2004)

Maclean’s, August, 25, 2003: On the Iraq war.
2003