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

I try to speak plainly and be sympathetic to the idea of religions where people gather in community. They get a sense of people looking out for each other. My claim is that we have a tendency to look out for each other whether or not there is a religion involved.

The theory of evolution was not formally published until shortly before Faraday's death. Evolution was yet to be discovered during Faraday's life. Also, I don't think that Michael Faraday would claim that the Earth is extraordinarily young.

If NASA is to reach beyond the Moon and someday reach Mars, it must be relieved of the burden of launching people and cargo to low earth orbit. To do that, we must invest more in commercial spaceflight.

Humor is everywhere in that there's irony in just about anything a human does.

Recommending or insisting on abstinence has been completely ineffective.

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