There are a lot of reasons for not doing something. And if humanity had come up with all the reasons for not doing something we wouldn't have spread across the Earth the way we have. There's a curiosity, and I would submit that that curiosity will put human beings on the surface of Mars.
Buzz AldrinRay Bradbury is one who is contributing to the understanding of the imagination and the curiosity of the human race.
Buzz AldrinThere are always door openings. And gradually, it accumulates. The opportunities open up in front of you.
Buzz Aldrin