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.

When we sit down to draw or paint the sun's rays, we generally use yellow because in the morning and the evening with the blue light scattered away so strongly you're left with a little bit of red and it comes out yellowish.

To leave the world better than you found it, sometimes you have to pick up other people's trash.

Religion is a completely different thing from the claim that the Earth is six thousand years old. That's just crazy.

There are two ways to be rich: to have more or need less. It's estimated that we squander about 30 percent of our energy leaving the lights on, the refrigerator door open, and so on. Then there is the enormous amount of food that we expend huge amounts of energy to raise and then throw away.

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.

That's what makes a human a human, if we store information outside our bodies.