I remember a story about a famous performer... singer or violinist, I forget which. Someone came up to him and performed for him, and said he wanted tips on how to become a professional. The famous performer said, "You're not good enough to go pro." The person left, dejected, head low. The friend of the performer who witnessed this all said, "Why'd you say that? He was pretty good." The performer said, "He was, but success isn't about talent. If he lets my opinion stop him, he'd never make it. If he doesn't, I've given him a burning desire to prove me wrong, which will help him succeed."