“Bravery comes along as a gradual accumulation of discipline”

“Humanity is destined to explore, settle, and expand outward into the universe.”

“There may be aliens in our Milky Way galaxy, and there are billions of other galaxies. The probability is almost certain that there is life somewhere in space.”

“Space travel for everyone is the next frontier in the human experience.”

“As we begin to have landings on the moon, we can alternate those with vertical launch of similar crew modules on similar launch vehicles for vertical-launch tourism in space, if you want to call it...”

“As someone who flew two space capsules and twice landed in the ocean, I can attest from personal experience how much logistics work is needed to get you home.”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”

“Copying Juvvens gaze over the treetops at the edge of the shooting range, he saw the fields of Flanders before his inner eye. Yes, the wide horizon The memory made the corners of his mouth curl sli...”

“Jed thought he understood. It was like when his radios were thrown away. You could shrug your shoulders, put on a face that said you didn't care, but you did and nothing could ever be secure again....”

“What you're looking for is already inside you. You've heard this before, but the holy thing inside you really is that which causes you to seek it. You can't buy it, lease it, rent it, date it, or a...”