You have to always continue to strive no matter how hard things get, no matter how troubled you feel. No matter how tough things get, no matter how many times you lose, you keep trying to win.
“It's true that the original idea was mine, but what you see today is the work of probably tens of thousands of the world's best engineers, all concentrating on improving the product, reducing the cost, things of that sort.”
“This is how it has been since time began: If you want to make something really worthwhile and true, then you have to suffer for it.”