It is not the critic who counts: not the man who points out how the strong man stumbles or how the doer of deeds could have done better. The credit belongs to the man who is actually in the arena, whose face is marred by sweat and blood, who errs and comes up short again and again, but who knows the great enthusiasms, the great devotions, who spends himself for a worthy cause; who, at the best, knows, the triumph of high achievement, and who, at the worst, if he fails, at least he fails whilst daring greatly.   

-Theodore Roosevelt