"Our knowledge and use of the laws of nature that enable us to fly to the Moon also enable us to destroy our home planet with the atom bomb. Science itself does not address the question whether we shou…"

"The American taxpayer is going to get a good return on his investment in space."

"We are on the threshold of a new era of space exploration."

"I aim at the stars, but hit the moon."

"During my visits in the Mittelwerk, I never saw a dead man nor did I ever see a beating or a killing."