(...) A cynical habit of thought and speech, a readiness to criticize work which the critic himself never tries to perform, an intellectual aloofness which will not accept contact with life's realities—all these are marks, not, as the possessor would fain think, of superiority, but of weakness. They mark the men unfit to bear their part manfully in the stern strife of living, who seek, in the affectation of contempt for the achievements of others, to hide from others and from themselves their own weakness. The role is easy; there is none easier, save only the role of the man who sneers alike at both criticism and performance.
It is not the critic who counts; not the man who points out how the strong man stumbles, or where 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 no effort without error and shortcoming; but who does actually strive to do the deeds; who knows the great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who know neither victory nor defeat.
(...)There is little use for the being whose tepid soul knows nothing of the great and generous emotion, of the high pride, the stern belief, the lofty enthusiasm, of the men who quell the storm and ride the thunder. "
~Theodore Roosevelt,
Citizenship in a Republic, the Man in the Arena
April 23, 1910