"We knew that we had created a new means of warfare, and the question as to what to do with it was a moral problem for the world, not for us."

"The rocket will open the door to the universe."

"The Earth is too small for our ambitions."

"The working conditions there were absolutely horrible. I saw the Mittelwerk several times, once while these prisoners were blasting new tunnels in there and it was a pretty hellish environment. I'd ne…"

"A good scientist is a man with an original mind who can think straight, but who also has a practical sense of what is possible."