People won't have time for you if you are always angry or complaining.

The rate of progress is so rapid that what one learns at school or university is always a bit out of date. Only a few people can keep up with the rapidly advancing frontier of knowledge, and they have to devote their whole time to it and specialize in a small area. The rest of the population has little idea of the advances that are being made or the excitement they are generating.

Half the battle is just showing up.

Some people would claim that things like love, joy and beauty belong to a different category from science and can't be described in scientific terms, but I think they can now be explained by the theory of evolution.

No one can resist the idea of a crippled genius.

We have made remarkable progress in the last hundred years, but if we want to continue, our future is in space.

Disorder increases with time because we measure time in the direction in which disorder increases.