Radio is just a fashion contrivance that will soon die out. It is obvious that there never will be invented a proper receiver!

I didn't fail 1000 times. The light bulb was an invention with 1000 steps.

Work while others are wishing.

There is much more opportunity than there are people to see it.

I can never pick up a thing without wishing to improve it.

Negative results are just what I want. They’re just as valuable to me as positive results. I can never find the thing that does the job best until I find the ones that don’t.

First be sure a thing is wanted or needed, then go ahead.