Jessica Ennis-Hill

I think that's one of the first things you'd say if you met me: that I am just nice and smiley. And that's how I might appear when I'm not competing. But I'm totally different when it comes to sport. It's just something that seems to be within me. It's not external or visual. But it's within me.

If we live a self-directed, self-motivated, self-centered life, always needing to get our own way, then we're going to be miserable. In fact, many times we believe it's our problems that are making us unhappy when, in reality, it's because we're focused on ourselves!

What cracks me up is people who think I don't take baseball seriously. It's the most important thing in my life. They don't know how hard it is for me to get a bad game out of my mind. I still can't, but I'm getting better.