I Have No Special Talent.

The True Sign Of Intelligence Is Not Knowledge But Imagination.

Do You Really Believe That The Moon Isn’t There When Nobody Looks?

I'd Rather Be An Optimist And A Fool Than A Pessimist And Right.

If I Could Do It All Again, I'd Be A Plumber.

It Is Just As Important To Make Knowledge Live And Keep It Alive As To Solve Specific Problems.