The most important thing is to believe in yourself and know that you can do it.

Words can't even describe how much Olympic medals means to me, because of all the hard work, sacrifice and effort I put in at the gym, and also because of how much my family supported me and sacrificed their dreams for mine. It also means a lot to me, knowing that I became the first African American to win the individual all-around gold medal.

Hard days are the best because that's when champions are made.

Even if you have the talent, you still have to push yourself. I don't think dreams magically appear, that's why they're called dreams. But if you do want to make that dream a reality, then you have to push yourself. It takes a lot of hard work, and if you don't have the focus, then it's going to be all the harder. If you have a big dream, it takes all of the above to achieve it: passion, the focus and the effort.

I'm a very good bowler, which I discovered a few months ago.

Don't be shy. Go for it and ask your crush out.

My mom says I'm a fighter, a fierce competitor, and I think I am, too.