"Neil Armstrong was the first man to walk on the moon. I am the first man to piss his pants on the moon.""Mars is there, waiting to be reached.""To me, that is one of the most important principles of life: Never leave your friends behind.""Bravery comes along as a gradual accumulation of discipline""Regardless of how you believe the universe was created, it is there waiting for humans to explore.""But failure is not a sign of weakness. It is a sign...