When you sit with a nice girl for two hours, it seems like two minutes; when you sit on a hot stove for two minutes, it seems like two hours. That's relativity.

The only thing that you absolutely have to know, is the location of the library.

I was just more stubborn and more passionate than most about physics.

Failure is success in progress

As long as I have any choice in the matter, I shall live only in a country where civil liberty, tolerance and equality of all citizens before the law prevail.

We have to do the best we are capable of. This is our sacred human responsibility.

I get the most joy in life out of music.