Bullfight critics row on row
Fill the enormous Plaza de toros
But only one is there who knows
And he is the one who fights the bull.
Source, in full
Slightly misquoting Domingo Ortega, as translated by the English poet Robert Graves), in remarks during a Presidential Backgrounder before the National Foreign Policy Conference for Editors and Radio-TV Public Affairs Broadcasters (16 October 1962)]; "Presidential Backgrounder 16 October 1962 #50," Box 134, Classified Background Briefing Material Series, Pierre Salinger Papers, John F. Kennedy Presidential Library
Notes from Wikiquote
The original poem: Bullfight critics ranked in rows
Crowd the enormous Plaza full
But only one is there who knows
And he's the man who fights the bull.