Pierre Curie, a brilliant scientist, happened to marry a still more brilliant one-Marie, the famous Madame Curie-and is the only great scientist in history who is consistently identified as the husband of someone else.

There are no happy endings in history, only crisis points that pass.

And in man is a three-pound brain which, as far as we know, is the most complex and orderly arrangement of matter in the universe.

There is no belief, however foolish, that will not gather its faithful adherents who will defend it to the death.

Increasingly, our leaders must deal with dangers that threaten the entire world, where an understanding of those dangers and the possible solutions depends on a good grasp of science. The ozone layer, the greenhouse effect, acid rain, questions of diet and heredity. All require scientific literacy. Can Americans choose the proper leaders and support the proper programs if they themselves are scientifically illiterate? The whole premise of democracy is that it is safe to leave important questions to the court of public opinion - but is it safe to leave them to the court of public ignorance?

The essential building block is...the true love that is impossible to define for those who have never experienced it and unnecessary to define for those who have.

Of course there are worlds. Millions of them! Every star you see has worlds, and most of those you don't see.