"We have to find a way to control this weapon, or it will control us."

"The development of atomic weapons has made it clear that there is no alternative to international cooperation."

"Truth, not a pet, is man's best friend."

"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."

"We must be prepared to make the effort to understand the world, and to live in it as human beings."