Columbia University, where I went to study in 1993, insisted its undergraduates learn a foreign language, so I discovered French.
I learned from the example of my father that the manner in which one endures what must be endured is more important than the thing that must be endured.
If you can react the same way to winning and losing, that's a big accomplishment. That quality is important because it stays with you the rest of your life, and there's going to be a life after tennis that's a lot longer than your tennis life.