“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.”

This aphorism is a classic example of a philosophical tautology. Who is going object to the claim that "it is not the critic who counts."
This essay is typical of a bullshit politician who claims in words ever so strongly that being bad is bad.
Walt

I'm not quite sure how to rate this. In context and intent of observation and practice — maybe a 4 or 5 star. Good and evil may be brought about with the same zealousness expressed and without constructive criticism to adjust focus — maybe a one star or thumb's down.

" I would rather fail with honor than succeed through fraud."
General Dunford, Chairman of the Joint Chiefs of Staff 
Critics are a dime a dozen, doers are honed in a sea of adversity. 
Let us strive lawfully. 
" Who, if he rise to station of command,
Rises by open means; and there will stand
On honorable terms, or else retire," 
The Happy Warrior, William Wordsworth 

This has just become my new favorite quote.
To those that seem to have stopped at the first sentence, try reading it all. Or, maybe, you felt too much similar to the "critics" he is talking about?
"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"