I see Americans of every party, every background, every faith who believe that we are stronger together: black, white, Latino, Asian, Native American; young, old; gay, straight; men, women, folks with disabilities, all pledging allegiance under the same proud flag to this big, bold country that we love. That's what I see. That's the America I know!

I know that I am intelligent, because I know that I know nothing.

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.

Let us permit nature to have her way. She understands her business better than we do.

We shall see but a little way if we require to understand what we see.