The ultimate goal of physicists is to arrive at an equation that explains everything and could fit on a t-shirt. That may happen but the t-shirt would have to be 10-dimensional.

The lack of understanding of something is not evidence for God. It's evidence of a lack of understanding.

The purpose of education is not to validate ignorance but to overcome it.

I like to say that while antimatter may seem strange, it is strange in the sense that Belgians are strange. They are not really strange; it is just that one rarely meets them.

Without science, everything is a miracle.

As a scientist, I don't believe anything. Science shouldn't use the word belief. There are things more likely and less likely. Science can say nothing with absolute certainty.

[The writers of the holy books] did not even know the earth revolves around the sun. Why are we listening?

Forget Jesus. The stars died so that you could be here today.

Keeping religion immune from criticism is both unwarranted and dangerous.

Whatever the evolutionary basis of religion, the xenophobia it now generates is clearly maladaptive.

It is a shame when nonsense can substitute for fact with impunity.

If we are merely matter intricately assembled, is this really demeaning? If there's nothing here but atoms, does that make us less or does that make matter more?

I manage to hold the poker face when she submits to dominance, to the summons, and swans into my arms, pressing her quivering form against mine when she embraces me.

Personally, I'd like to see more of our leaders take a technocratic approach to solving our biggest problems.

There's two things that you don't listen to: flattery, which can't help you, and abuse, which can't hurt you. You have to look at the facts.

Instead of taking a year off, I started Dreamers of the Day exactly 36 hours after I sent the manuscript for A Thread of Grace to the publisher!

We need new leadership in the USA that will name our enemy.

There is a tendency for people to say evolution is only a theory. That is inappropriate.

Consciousness ... is the phenomenon whereby the universe's very existence is made known.

About things on which the public thinks long it commonly attains to think right.

That's a valiant flea that dares eat his breakfast on the lip of a lion.