Tom Brady—who was a sixth-round NFL pick, at number 199—is a strong proponent of failing in order to succeed. He’s perhaps the best-known football player past or present, and is the winningest player in the league’s history, holding a record seven Super Bowl titles. At Fortune’s Global Forum in New York on Tuesday, Brady—a father of three—extolled the virtues of letting your kids fail, even if that’s no longer the norm.