The longer we dwell on our misfortunes, the greater is their power to harm us.

Trouble springs from idleness, and grievous toil from needless ease.

One man's ways may be as good as another's, but we all like our own best.

When in doubt, don't.

I'm not as famous as Stephen Hawking, but certainly in the U.S., I have a very high profile for a scientist. It is an awesome responsibility, one that I don't shoulder lightly.