I think in life you should work on yourself until the day you die.

Am I the greatest? I don't know. I'm the greatest that I can be.

I always say that when I'm playing well, no one can beat me. I'm not just saying that to sound full of myself or anything, but it's true.

I'm an unbelievable designer. I don't know how I know and just do these things. I just start sketching and then I just know the colors and I always know the forecast. I know green and purple are going to be hot. I was born to be a designer. I worked hard to be a tennis player, I don't work hard to be a designer.

Venus told me the other day that champions don't get nervous in tight situations. That really helped me a lot. I decided I shouldn't get nervous and just do the best I can.

There's one thing I'm really good at, and that's hitting the ball over a net, in a box. I'm excellent.

If anything, we haven't changed much since we [with Venuse Williams] were kids. We really are the same people.