People and stars are made of the same stuff.

Recommending or insisting on abstinence has been completely ineffective.

I've got no problem with anybody's religion. But if you go claiming the Earth is only 10,000 years old, that's just wrong.

There are just two people entitled to refer to themselves as "we"; one is the editor and the other is the fellow with a tapeworm.

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

Unlike science, creationism cannot predict anything, and it cannot provide satisfactory answers about the past.

SCIENCE is a part of EVERYONE'S everyday life.

By the way, most of the light that comes from the sun is green.

Hard to find anything lovelier than a tree. They grow at right angles to a tangent of the nominal sphere of the Earth.

If you look back on all the teachers that you liked, I am sure you will find they were very entertaining.

What happens to other species also happens to us.

Science provides a much more satisfactory way to seek answers than does any religion.

The Earth is not 6,000 or 10,000 years old. It's not. And if that conflicts with your beliefs, I strongly feel you should question your beliefs.

The information you get from social media is not a substitute for academic discipline at all.

Bicycling is a big part of the future. It has to be. There's something wrong with a society that drives a car to work out in a gym.

Science is the key to our future, and if you don't believe in science, then you're holding everybody back.

I speak with dogs frequently. They don't really talk, but I feel they're communicating.

The natural world is a package deal; you don't get to select which facts you like and which you don't.

The more you find out about the world, the more opportunities there are to laugh at it.