"Nature does not know extinction; all it knows is transformation."

"We knew that we had created a new means of warfare, and the question as to what nation, to what victorious nation we were willing to entrust this brainchild of ours was a moral decision more than anyt…"

"One cannot be timid when one works with liquid oxygen."

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

"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…"