The galleries are full of critics. They play no ball. They fight no fights. They make no mistakes, because they attempt nothing. Down in the arena are the doers. They make mistakes because they attempt many things. The person who makes no mistakes lacks boldness and the spirit of adventure. He is the one who never, never tries anything new. He is the brake on the wheel of progress. The very fact that he tries nothing, takes no chances, does nothing except criticize those who try is, perhaps, the biggest possible error in a life-time.