With the fearful strain that is on me night and day, if I did not laugh I should die.

I decided to sell my drawings. However, I didn't want people to buy my drawings because the professor of physics isn't supposed to be able to draw - isn't that wonderful - so I made up a false name.

When Britain and the U.S. invaded Iraq, it was with the reasonable expectation that it was going to increase the threat of terror, as it has.

As we look ahead into the next century, leaders will be those who empower others.

Nearly every man who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That's not the place to become discouraged.