I suggest that going to Mars means permanence on the planet - a mission by which we are building up a confidence level to become a two-planet species.

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.

The next war... may well bury Western civilization forever.

Navigation is power of a limited sort - it enables us to manage the immensity of the media torrent.

Obviously, I come from one background, and the people that design fitness equipment have been doing it for years and years, and they know what works and doesn't work.

The World Wide Web went from zero to millions of web pages in a few years. Many revolutions look irrelevant just before they change everything swiftly.

What must be remembered in any case is that secret complicity that joins the logical and the everyday to the tragic.

I am the best in the world at what I do!

Some people think [Ted] Cruz is just as bad of an electoral nightmare down the ballot as [Donald] Trump.

It is a fact, however, that there is no rest for the wicked.

We are doomed to cling to a life even while we find it unendurable.

I often conduct interviews in my truck.