"Positive psychology is not a spectator sport."

译文：年华随同时光飞快逝去，意志随同岁月而丧失。最终(像黄叶一样)枯老衰落，大多不接触世事，对社会没有任何贡献，只能悲哀困守在自己破败的房子里，那时再悔恨又怎么来得及!

Anyone who isn't embarrassed of who they were last year probably isn't learning enough.

I'm just a musician. I don't have any special talents. I'm just a guy who loves music.

"The best way to learn is by making mistakes."