Those who educate children well are more to be honored than they who produce them; for these only gave them life, those the art of living well.

If women have young children, they are one man away from welfare.

In theory one is aware that the earth revolves, but in practice one does not perceive it, the ground upon which one treads seems not to move, and one can live undisturbed. So it is with Time in one's life.

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.

I didn't used to wear a watch. Now I have a SPOT watch, which I wear all the time.