And that’s what’s given us the ability to say no. It’s one of the most important things at the end of the day, being able to say no to an investment. Even if you’ve done a lot of work, work will never hurt you.

the colonel said I shouldn't tell them how the neutrons work and all the details because we want to keep things separate, so just tell them what to do to keep it safe.

What I'm not willing to accept is the enduring status quo around maternity. I asked Nike to contractually guarantee that I wouldn't be punished if I didn't perform at my best in the months surrounding childbirth. I wanted to set a new standard. If I, one of Nike's most widely marketed athletes, couldn't secure these protections, who could?

I am personally passionate and anal about non-negotiables. If those needs aren't met, I quit. Life is too short to play-act if you don't have to.

I wouldn’t change anything about myself. If you asked me 20 years ago, I probably would have had a long list. But I’ve learned to appreciate and love who I am.

I have never liked the word retirement. It doesn't feel like a modern word to me. I've been thinking of this as a transition, but I want to be sensitive about how I use that word, which means something very specific and important to a community of people. Maybe the best word to describe what I'm up to is evolution. I'm here to tell you that I'm evolving away from tennis, toward other things that are important to me.

Any lost match is, of course, disappointing, but every loss is a lesson to be learned.

Taking time every day to read the Bible.

My mom and dad. They always encouraged me to keep spiritual things first.

A veterinarian.