Thou shalt not steal the shekels of thine audience with a play which doth not let them know what the hell goeth on.

If you're going to make a musical, don't cartoon it from the play. Make it better than the play. Have a reason for making it sing.

A neurotic is a man who builds a castle in the air. A psychotic is the man who lives in it. A psychiatrist is the man who collects the rent.

All motion is relative. Maybe it's you who've moved away by standing still.

Our only competition in the theater is boredom, because if I'm bored with a play, if I'm revolted by a play on stage, with the Broadway prices, especially today, I'm going to walk out and not come back and pay that price again.

An idea is a greater monument than a cathedral. And the advance of man's knowledge is more of a miracle than any sticks turned to snakes, or the parting of waters!

Is it possible to be overzealous, to destroy that which you hope to save-so that nothing is left but emptiness.