a lesson from the new muppet movie

Went and saw "The Muppets" tonight. Its a good film, and there was one moment that I especially enjoyed. The main human character says to his muppet brother:

He said: "You've always believed in others, but that's easy. Now you have to believe in yourself, and figure out who you want to be. Because that's what growing up is all about."

I thought it was profound.