The values of science and the values of democracy are concordant, in many cases indistinguishable. Science and democracy began - in their civilized incarnations - in the same time and place, Greece in the seventh and sixth centuries B.C. . . . Science thrives on, indeed requires, the free exchange of ideas; its values are antithetical to secrecy. Science holds to no special vantage points or privileged positions. Both science and democracy encourage unconventional opinions and vigorous debate. Both demand adequate reason, coherent argument, rigorous standards of evidence and honesty.

It does no harm to the romance of the sunset to know a little bit about it.

The visions we offer our children shape the future.

Understanding is a kind of ecstasy

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

It means nothing to be open to a proposition we don't understand.

And you are made of a hundred trillion cells. We are, each of us, a multitude.