The Teacher's Argument, Fame, 1980: https://www.youtube.com/watch?v=0OVfOJ4Oi0c

Some kids who try to compete in a winner-take-most market, whether that's being a famous artist, performer, or academic, will succeed; most won't. No one who doesn't try will succeed. Someone is going to succeed. (Who wrote The Teacher's Argument? People who by definition made a famous musical, that's who.)