It's Humbling To Think That All Animals,

Mathematicians Deal With Large Numbers Sometimes, But Never In Their Income.

[social] Science Fiction Is That Branch Of Literature Which Is Concerned With The Impact Of Scientific Advance On Human Beings.

I Made Up My Mind Long Ago To Follow One Cardinal Rule In All My Writing — To Be Clear.

I Don't Think I've Ever Held A Racket In My Hand ... There's Got To Be Somebody In The Us Who Isn't Trying To Play Tennis And Stinking Up The Court.

To Introduce Something Altogether New Would Mean To Begin All Over, To Become Ignorant Again, And To Run The Old, Old Risk Of Failing To Learn.