What happens to other species also happens to us.

If the Earth gets hit by an asteroid, it's game over. It's control-alt-delete for civilization.

Intuitively you want some place [such as your phone] to store phone numbers, so you have that part of your brain to do other tasks.

There really is no such thing as race. We all came from Africa. We are all of the same stardust. We are all going to live and die on the same planet, a Pale Blue Dot in the vastness of space. We have to work together.

If you decide to become a dancer on Broadway, never say who your favorite dance partner is, because members of the media will presume you never want to dance with anybody else.

You stop planetary exploration, those people who do that extraordinary work are going to have to go do something else.

Everyone, red state, blue state, everyone supports space exploration.