Tennis has given me so many opportunities, and I feel very lucky to have achieved whatever I have, especially coming from a country that does not have a great history in the game.

Coaches were all saying that I was really talented and I had potential, but coming from Serbia, it wasn't easy. The '90s were the hardest years for our country - we went through two wars.

Everyone wants to be happy - people find happiness in different ways. While you want to pursue your career 100 percent, I think it is very hard to give 100 percent in something else. It's important to find this balance, and priorities change throughout life.

I think it's better not to mix professional life and personal life - although it is hard.

In the Hillary Clinton model, the wife chooses to support the straying husband while wearing a distressed and presumably pained expression in public. She stays in the marriage as a way to serve both her personal ambition as well as their shared ambition to achieve ever-greater positions of power and influence.

I feel like, in some level, in our biggest moments of success we were always the underdog.

The king of comedy is dead. Richard Pryor was the king of comedy. The rest of them are the king of copycats.

Failure is easy to handle because once you fail, the options are very simple... like, 'Try something different,' or, 'Maybe if you do the same thing, do it in a different way.'