"I have never seen a rocket that didn't want to fly."

"I believe that the time will come when man will be able to fly to the moon and beyond."

"There is no more beautiful sight to me than a rocket on a launch pad, ready to go."

"Science does not have a moral dimension. It is like a knife. If you give it to a surgeon or a murderer, each will use it differently."

"Man belongs to the Earth, but his destiny lies in the stars."