From an evolutionary standpoint you can't just wipe everything out and start over, and I don't think you can do it in the school system either.

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.

SCIENCE is a part of EVERYONE'S everyday life.

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

The world's going to change climatically. We just want to control the change. We want to have a high quality of life for billions of people as we pass through this era.

I meet so many people who are intimidated by arithmetic.

If you want grown-ups to recycle, just tell their kids the importance of recycling, and they'll be all over it.