It's not the critic who counts, not the man who points
out how the strong man stumbled, or when 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 dust and
sweat and blood; who strives valiantly; who errs and comes
short again and again; who knows the great enthusiasms,
the great devotions and spends himself in a worth 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 or defeat. Theodore
Roosevelt