Q8:Why weren't you ambitious about your acting before?
...When I was younger I never dreamed of being an actor. I was an ordinary kid and became an ordinary college student. And then in 1995 someone who worked for a fashion label came into where I was working part-time, and asked if I wanted to enter a modeling contest. And then they picked me, and all of a sudden I was a model. Kim Sung-jae was the main model and So Ji-sub and I were just starting, and then when Kim Sung-jae died suddenly, somehow So Ji-sub and I became the main models.
And then after that, I came to do Three Men, Three Women. Without any preparation. So I started without any ambition to feed, and I got an enormous amount of criticism, saying that I couldn't act. But now it's different. Now acting is the best I can do, and it's a career that I've invested more than ten years in. In my twenties, I just thought, 'This must be what I'm doing.' But now I've come to think about the fans and the public before myself.

Q9:Do you have any fears? Do you ever worry about losing popularity?
Ever since I was a newbie, I always had it drilled into my head not to be attached to popularity. So I'm actually not the type to be concerned with that too much. Of course, I'm human, so it's better to be popular than not, but it's not like I could be a youth star forever. While working on My Princess with Lee Soon-jae [who plays Grandpa], I saw how passionate he was, even at his age, and it made me want to become like him. I actually became ashamed of myself while watching him. He spent his youth digging deep to learn his craft, but I've never done that. I never dreamed of being an actor when I was young. So now I'm full of regret that I didn't do the same.
Q10:What do you do on your down time?
...I go play with my friends or I exercise. I play golf. Now that I think about it, my life is kind of boring. (Laughs)
Q11:Any plans for marriage?
I really want to start a family. But that's not so easy to do. I don't have a partner. Who knows, someday somebody I'll love will suddenly appear, and I might be talking about marriage.
Sources:
kdw81mrsupernatural and
Viki - My Princess
I like to quote what he said which made me really like his interview
I'm not trying to make myself stand out anymore; I've learned the importance of harmony.
Such a hard phrase to speak out.. but how cool for him to say this..
It ain't just for artists to say.. but for everyone to realize that we are in a world where almost every one race to the top and be the best and actually forgot to build a good relationship with others..
It's still the best to think for the good of others.. specially those whom we work with and who loves us the most..
Makes me admire him more.. for someone to realize such thoughts.. thumbs up SSH!