Our first duty is not to hate ourselves, because to advance we must have faith in ourselves first and then in God. Those who have no faith in themselves can never have faith in God.
In order to excel, you must be completely dedicated to your chosen sport. You must also be prepared to work hard and be willing to accept constructive criticism. Without one-hundred percent dedication, you won't be able to do this.
Willie Mays
I think everyone should experience defeat at least once during their career. You learn a lot from it.