I do not believe any type of religion should ever be introduced into the public schools of the United States.

Consider data without prejudice.

Be brave as your fathers before you. Have faith and go forward.

I never failed once. It just happened to be a 2000-step process.

I never did anything worth doing entirely by accident. . . Almost none of my inventions came about totally by accident. They were achieved by having trained myself to endure and tolerate hard work.

If I could solve all the problems myself, I would.

I've never made a mistake. I've only learned from experience.