I abandoned my religious teachings after I read the Bible twice - cover to cover. It took me a couple of years.

Infinitely more important than sharing one's material wealth is sharing the wealth of ourselves-our time and energy, our passion and commitment, and, above all, our love.

Achievers must not be penalized or parasites rewarded if we aspire to a healthy, productive, and ethical society.

If you really want to help the poor, help the rich. They're the ones who will invest, build more factories, create more jobs.

The advantage of the cauliflower is that if all else fails, you can always cover it with melted cheese and eat it.

Freedom is strangely ephemeral. It is something like breathing; one only becomes acutely aware of its importance when one is choking.

Bad politicians are sent to Washington by good people who don't vote.

Talk about science with everyone you meet. Especially talk about climate change. It needs to become a part of our everyday conversation (the way it is everywhere else in the world).

Our goal in science is to discover universal laws of nature. That pursuit fills me with wonder.

The Big Bang banged, and for some reason we’re here. And that’s astonishing. And that we can understand that, that’s the most astonishing.

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.