“Sometimes doing your best is not good enough. Sometimes you must do what is required.”
“It is not enough that we do our best; sometimes we must do what is required.”
“Sometimes your best isn't good enough”
“Sometimes you must seem to hurt something in order to do good for it.”
“You MUST do what you love. Sometimes your passion will be the only thing that keeps you motivated.”
“Sometimes, very occasionally, you do your best boxing with your mouth.”