"If I could go back in time, I wouldn't change anything. To me, everything I've done for my music in the past are important lessons to learn from. I know that I didn't deserve to achieve fame in the beginning of my career, because my earlier albums were not good at all. I admit that my earlier works cannot be compared to other singers at all. Of course I would lose to them. Personally, I think that your product determines your success. Okay, I'm 35 this year, and I could be writing till I'm 50. But If I cannot write anymore good songs when I turn 40, I would probably just quit and be a hermit. I would probably be very devastated while hiding at home, but I don't want to write lousy songs. Personally, I think that an "expiration date" for an artist is determined not by others, but by the artist. Only the artist can cause his own career to end."