Do the thing and the power will come.

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.

I never knew I had an inventive talent until Phrenology told me so. I was a stranger to myself until then!

When down in the mouth, remember Jonah. He came out all right.

Through all the years of experimenting and research, I never once made a discovery. I start where the last man left off... All my work was deductive, and the results I achieved were those of invention pure and simple.

I have not failed. I've just found 10,000 ways that won't work.

It is apparent to me that the possibilities of the aeroplane, which two or three years ago were thought to hold the solution to the [flying machine] problem, have been exhausted, and that we must turn elsewhere.