Even the recognition of an individual whom we see every day is only possible as the result of an abstract idea of him formed by generalization from his appearances in the past.

By religion, then, I understand a propitiation or conciliation of powers superior to man which are believed to direct and control the course of nature and of human life.

The moral world is as little exempt as the physical world from the law of ceaseless change, of perpetual flux.

I never had a favourite book! I liked all kinds of things - science fiction, so I read Heinlen and Ray Bradbury, and I also liked reading about kids like myself, so I read Judy Blume and Norma Klein and Paula Danzinger and a lot of other writers. I also read James Herriot!

Health care can be made more affordable for the poor without requiring major new scientific developments, just the smart application of current technologies. We have seen a $25 incubator and diagnostic instruments that are built tough, cheap, and reusable for the developing world.

I feel a connection to many songs that I won't sing because I don't think they are right for me! There is something in my gut that immediately responds. There's no science to it.

While physics and mathematics may tell us how the universe began, they are not much use in predicting human behavior because there are far too many equations to solve. I'm no better than anyone else at understanding what makes people tick, particularly women.