While our behavior is still significantly controlled by our genetic inheritance, we have, through our brains, a much richer opportunity to blaze new behavioral and cultural pathways on short timescales.

The fact that someone says something doesn't mean it's true. Doesn't mean they're lying, but it doesn't mean it's true.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits have equal value.

If you look at Earth from space you see a dot, that's here. That's home. That's us. It underscores the responsibility to deal more kindly and compassionately with one another and to preserve and cherish that pale blue dot, the only home we've ever known.

I hold that popularization of science is successful if, at first, it does no more than spark the sense of wonder.

The price we pay for anticipation of the future is anxiety about it