"If atomic bombs are to be added as new weapons to the arsenals of a warring world, or to the arsenals of nations preparing for war, then the time will come when mankind will curse the names of Los Ala…"

"The atomic bomb is a challenge to our humanity."

"It is a problem of how to live with the atomic bomb, and not how to live without it."

"I am a physicist. I am not a philosopher. I am not a theologian. I am a physicist. And I have done my job."

"We are not here to curse the darkness, but to light the candle that can guide us through it."