I put the sweat of my life into this project, and if it's a failure, I'll leave the country and never come back.

If I have made a mistake in the design, then I'm the one who should pay for it. I certainly would not ask somebody else to fly a plane if I were afraid to do it myself.

Passion will make you crazy, but is there any other way to live?

I put the sweat of my life into this project, and if it's a failure, I'll leave the country and never come back.

Play off everyone against each other so that you have more avenues of action open to you.

Once you consent to some concession, you can never cancel it and put things back the way they are.

I am by nature a perfectionist, and I seem to have trouble allowing anything to go through in a half-perfect condition. So if I made any mistake it was in working too hard and in doing too much of it with my own hands.