"The Spirit could even suffer defeat in the end: be outfoxed by a woman foe—stand there, his tongue making a dent in his cheek—charming in his boyish, Dennis O’Keeffe way—a comment on the ultimate ineffectuality of even super-heroes. But, of course, once a hero turns that vulnerable he loses interest to both author and readers. The Spirit, through the years, became a figurehead, the chairman of the board, presiding over eight pages of other people’s stories. An inessential do-gooder, doing a walk-on on page eight, to tie up loose strings. A masked Mary Worth."
—Jules Feiffer, The Great Comic Book Heroes