Even in the hardest circumstances, dreams can give you the courage to live, and I hope I can share that message with children in need.

I learned to practice smiling when I'm feeling sad, you know?

The people who should be here aren’t. The ones who should be smiling with me aren’t here.

I like to be just an athlete, but if I go to competition and compete, I love to be a star, maybe.

If I walk in the street in Korea, I am recognized.

Building a better life for every child is a lot harder than becoming a world champion. Both goals take dedication and commitment.

When children are immunized, it's really the beginning of a new day for them.