I'm going to Green Day Gig at Wembley Stadium tomorrow. This paragraph below is one part of the interview,which Billy Joe Armstrong from Green Day had before. I'm totally agree with the last sentence, and it seems that person, who has no passion is getting old quickly.
Why do you never seem to age?
[Laughs.] I definitely age. It's about trying to mentally keep yourself in a place where you're never resting on your laurels. That's the fountain of youth. It has nothing to do with the wrinkles on your face, how fat you get or if you get gray hair. It's your zest for life.