The Man In The Arena

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, who 
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 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 neither know 
victory nor defeat.
Theodore Roosevelt