Because I readily absorb ideas from every source - frequently starting where the last person left off - I never pick up an item without thinking of how I might improve it.

Invention is 10% inspiration and 90% perspiration.

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.

Everything comes to him who hustles while he waits.

I never failed. It just didn't work 10,000 times.

A genius is a talented person who does his homework.

Failure is the most effective technique to optimize strategic planning, implementation and processes.