I've been active in animal rights and all kinds of environmental stuff and children's charities over the years.

I think the key is for women not to set any limits.

The mentality, that's something you should be able to control. Whether you are healthy or not, how fast you can run - they aren't things you can work on, but the mentality should be.

The tennis ball doesn't know how old I am. The ball doesn't know if I'm a man or a woman or if I come from a communist country or not. Sport has always broken down these barriers.

Labels are for filing. Labels are for clothing. Labels are not for people.

I think retirement beats the heck out of life after death, that's for sure.

Keeping a journal of what's going on in your life is a good way to help you distill what's important and what's not.