Science Is Uncertain.

I'm Smart Enough To Know That I'm Dumb.

I Don't Feel Frightened By Not Knowing Things.

Don't Worry About Anything. Go Out And Have A Good Time.

What I Am Going To Tell You About Is What We Teach Our Physics Students In The Third Or Fourth Year Of Graduate School... It Is My Task To Convince You Not To Turn Away Because You Don't Understand It. You See My Physics Students Don't Understand It... That Is Because I Don't Understand It. Nobody Does.

You Can Always Recognize Truth By Its Beauty And Simplicity.