If you become great, then you can become happy. If you're happy first, it's much more difficult to be great.
I enjoy life. I always enjoy jokes.
I believe the brain is like a muscle - like any other it can be improved.
Not winning at Wimbledon is not going to bother me forever.
It's very nice to see when somebody who wanted to work hard and is willing to put the work in gets rewarded for it.
If you look at any superior athlete, you will find a strong parental influence. Parents introduce their children to a sport, and then they support them.