Let's invent a new tomorrow and then make it happen. Let's invent the city of tomorrow, the home of tomorrow, the transportation of tomorrow.

Private enterprise can never lead a space frontier. It's not possible because a space frontier is expensive, it has unknown risks and it has unquantified risks.

Knowing how to think empowers you far beyond those who know only what to think.

I was born the same week NASA was founded, so we're the same age and feel some of the same pains, joys, and frustrations.

Don't know if it's good or bad that a Google search on “Big Bang Theory” lists the sitcom before the origin of the Universe

The people that first climbed Mt. Everest weren't scientists, right, they were adventurers. If you're an adventurer, you want to go yourself. It's different than a scientist, who is simply wanting to learn.

Science is not a subject you took in school. It's life. We are wrapped by it, in it, with it.