Of the 200 light bulbs that didn't work, every failure told me something that I was able to incorporate into the next attempt.

Everything comes to him who hustles while he waits.

No Such Thing as Bad Results

I know of over 3,000 ways [that] a light bulb does not work.

I believe in the existence of a Supreme Intelligence pervading the Universe.

I have far more respect for the person with a single idea who gets there than for the person with a thousand ideas who does nothing.

The world owes nothing to any man, but every man owes something to the world.