I think most of my lessons come from sports. That's why I always emphasise to young kids to get involved in sports because it's where you learn about discipline. It's where you learn to keep going, where if you think you can't make it, you can.

You cannot get tired if you're interested in what you do. That's the key thing.

I think Americans are very patriotic.

We are going in the direction of artificial intelligence or hybrid intelligence where a part of our brain will get information from the cloud and the other half is from you, so all this stuff will happen in the future.

Having chicks around is the kind of thing that breaks up the intense training. It gives you relief, and then afterward you go back to the serious stuff.

As a kid I always idolized the winning athletes. It is one thing to idolize heroes. It is quite another to visualize yourself in their place. When I saw great people, I said to myself: I can be there.

The secret of success is to make your mind work for you - not against you. This means constantly being positive, constantly setting up challenges you can meet - either today, next week, or next month etc.