"The atomic bomb made the prospect of future war unendurable. It has led us up those last few steps to the mountain pass; and beyond there is a different country."

"The atomic bomb is a weapon which is new in many respects. It is a weapon of terror, a weapon for exterminating whole populations."

"The atomic age has changed everything, save our modes of thinking, and thus we drift toward unparalleled catastrophe."

"We have opened a new age, an age of atomic energy, an age of atomic weapons."

"I feel we have blood on our hands."