Astronauts working for the government will always need to be either pilots or mission specialists. Those who want to be pilots should have military experience - ideally, a test pilot background.

I think humans will reach Mars, and I would like to see it happen in my lifetime.

The biggest benefit of Apollo was the inspiration it gave to a growing generation to get into science and aerospace.

If we can conquer space, we can conquer childhood hunger.

No dream is too high for those with their eyes in the sky!

Exploration is wired into our brains. If we can see the horizon, we want to know what's beyond.

I still say, 'Shoot for the moon; you might get there.'

Knowledge of the past and an optimistic view of the present give you great opportunities.

Many say exploration is part of our destiny, but it's actually our duty to future generations and their quest to ensure the survival of the human species.

Neil Armstrong was the first man to walk on the moon. I am the first man to piss his pants on the moon.

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.

That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.

alone but trying to survive alone.

Money is everything in this world to some people, and more than the next to other poor souls.

But when you really believe-in yourself, in your dream-you just have to do everything you possibly can to take control and make your vision a reality. No great achievement happens by luck.

A lot of people who work on open-source software don't mind making money elsewhere. They aren't anticommercial.

Occasionally now I feel a wang that goes in my head - once you've got it you've got it. The [illness] was quite severe, leaving me deeply unhappy and frightened.

Use your powers for good instead of evil

I suppose all writers worry about the well running dry.

You were aimed from birth: you will never be alone... The whole wide world pours down.