I never did a day's work in my life, it was all fun.

An idea is something that won't work unless you do.

Fooling around with alternating currents is just a waste of time. Nobody will use it, ever. It's too dangerous . . . it could kill a man as quick as a bolt of lightning. Direct current is safe.

When I have eliminated the ways that will not work, I will find the way that will work.

The greatest invention in the world is the mind of a child.

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

I never pick up an item without thinking of how I might improve it.