You must always aim for further growth.

Sebastian [ Vettel] can also learn to be more laid-back. It's never too late to learn. He's got some way to go. He's young and will turn out well. I'm not worried about that. He'll raise the bar ever higher.

It was the same with Schumacher: the need for the adrenaline rush, to push himself to the limit was always there. So without a Formula One car to race with he went on to do motorcycle racing and other stupid things, and obviously that wasn't enough to keep him happy, so he had a problem to sort out and returning to racing was his answer to the problem.

I am someone who places great value on the detail. That was always the case, even in my days as a racing driver.

You have a brake in your brain that stops you doing stupid things. The older you are, the earlier that brake comes on. When you're 20 you stop at nothing; when you're older you're cleverer than when you're 20, so your brain brake operates more often!

Whenever there is discussion, I make it clear that I do not want any grey zones, just black and white.

I always want to know whether the customers are satisfied; customer satisfaction is, after all, my ultimate goal!