"In the twenty-first century, the robot will take the place which slave labor occupied in ancient civilization."

"It is not a death ray in the sense that it kills. It is a weapon that will make war impossible."

"The scientific man does not aim at an immediate result. He does not expect that his advanced ideas will be readily grasped. His duty is to lay the foundation for those who are to come, and point the w…"

"The present is theirs; the future, for which I have really worked, is mine."

"This gives you vigor and vitality."