“If we continue to develop our technology without wisdom or prudence, our servant may prove to be our executioner.”

“Bravery is the capacity to perform properly even when scared half to death.”

“Set your course by the stars, not by the lights of every passing ship.”

“Ours is a world of nuclear giants and ethical infants. We know more about war that we know about peace, more about killing that we know about living.”

“The way to win an atomic war is to make certain it never starts.”

“Wars can be prevented just as surely as they can be provoked, and we who fail to prevent them, must share the guilt for the dead.”