Theodore Roosevelt on "Achievement"

"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 them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood, who strives valiantly, who errs and comes short again and again because there is not effort without error and shortcoming, but who actually strives to do the deed, who spends himself on a worthy cause, who knows the great enthusiasms--the great devotions, who knows, at the best, the triumph of high achievement. And who knows, at the worst, if he fails, at least he fails while daring greatly. So that his place shall never be with those cold and timid souls who know neither victory nor defeat." --Theodore Roosevelt