I like this quote a great deal.
I'm a great believer in filling your head full of quotes. You've got to soak your head with these mantras because they will pull you through those dark days.
One that I used all the time was: Failure isn't an option.
A reporter once asked me what I would have done if I hadn't lost the weight. I did a double take on the question. The possibility of failure hadn't even entered my mind because that quote had completely soaked my mind. So I replied to the question with my mantra..."failure isn't an option!"