I Never Did A Day's Work In

I Have Had A Lot Of Success With Failure

I Didn’t Fail Ten Thousand Times. I Successfully Eliminated, Ten Thousand Times, Materials And Combinations Which Wouldn’t Work.

Nothing That's Good Works By Itself, You've Got To Make The Damn Thing Work.

The Greatest Discoveries Will Be Along Spiritual Lines. This Is The Field Where Miracles Are Going To Happen. Spiritual Power Is The Greatest Underdeveloped Power And Has The Greatest Future.

I Did Not Fail Two Thousand Times. I Merely Found Two Thousand Ways Not To Make A Lightbulb.