“It is an atomic bomb. It is a harnessing of the basic power of the universe. The force from which the sun draws its power has been loosed against those who brought war to the Far East.
Before 1939, it was the accepted belief of scientists that it was theoretically possible to release atomic energy. But no one knew any practical method of doing it. By 1942, however, we knew that the Germans were working feverishly to find a way to add atomic energy to the other engines of war with which they hoped to enslave the world. But they failed. We may be grateful to Providence that the Germans got the V-1's and V-2's late and in limited quantities and even more grateful that they did not get the atomic bomb at all.”

What Does God Want Us to Do About Russia? (1948)
Context: Every basic doctrine of Christianity is nullified to the degree that we accept the ideas and practices of atomic war: the fatherhood of God, the brotherhood of man, the inestimable value of human life, the kinship of all peoples, the duty and privilege of of sympathy and compassion and affection, the responsibility of the strong to bear the burdens of the weak, the overcoming of evil with goodness, the redemptive power of self-giving love, the supremacy of spiritual forces over material might.

Source: I Was There (1950), p. 442

Lecture on Srimad Bhagavatam, Canto 6, Chapter 1, verse 6; Sydney; February 17, 1973
Quotes from other Sources, Quotes from other Sources: False Prophecies

Statement on the Atomic Bomb to Raymond Swing, before 1 October 1945, as reported in Atlantic Monthly, vol. 176, no. 5 (November 1945), in Einstein on Politics, p. 373
1940s

Now is the Time to Prevent a Third World War (1950)
Context: The imminence of the threat hovering over civilization requires Christians to disentangle themselves from the war system as completely and as rapidly as they can.... Every Christian has the power to support or to oppose preparedness to wage atomic war.... He can support or oppose the delegating of wider jurisdiction and greater authority to the United Nations Organization through limitations upon national sovereignty. He can support or oppose the policy of settling every conceivable controversy with another nation by pacific means only. He can support or oppose the effort to create the international mind and heart in place of extreme nationalism and narrow patriotism.... He can choose between the way of war and the way of Jesus.

Eisenhowers proposal for the establishment of the International Atomic Energy Agency
1950s, Atoms for Peace (1953)

"President Truman Did Not Understand" http://www.peak.org/~danneng/decision/usnews.html in U.S. News & World Report (15 August 1960)
Variant: If the Germans had dropped atomic bombs on cities instead of us, we would have defined the dropping of atomic bombs on cities as a war crime, and we would have sentenced the Germans who were guilty of this crime to death at Nuremberg and hanged them.
As quoted in The Decision to Drop the Atomic Bomb (1996) by Dennis Wainstock, p. 122
Context: Suppose Germany had developed two bombs before we had any bombs. And suppose Germany had dropped one bomb, say, on Rochester and the other on Buffalo, and then having run out of bombs she would have lost the war. Can anyone doubt that we would then have defined the dropping of atomic bombs on cities as a war crime, and that we would have sentenced the Germans who were guilty of this crime to death at Nuremberg and hanged them?
But, again, don't misunderstand me. The only conclusion we can draw is that governments acting in a crisis are guided by questions of expediency, and moral considerations are given very little weight, and that America is no different from any other nation in this respect.

On UFO cultists, In "Flying Saucers: Fact or Farce?", San Francisco Sunday Examiner & Chronicle, "People" supplement, (20 October 1963); reprinted in The Maker of Dune : Insights of a Master of Science Fiction (1987), edited by Tim O'Reilly
General sources

Quoted in 'Tesla, 75, Predicts New Power Source', New York Times (5 Jul 1931), Section 2, 1.