‘A man must be partly a one-idead man, because he is a one-weaponed man—and he is flung naked into the fight. The world’s demand comes to him direct; to his wife indirectly. In short, he must (as the books on Success say) give “his best”; and what a small part of a man “his best” is! His second and third best are often much better. If he is the first violin he must fiddle for life; he must not remember that he is a fine fourth bagpipe, a fair fifteenth billiard-cue, a foil, a fountain pen, a hand at whist, a gun, and an image of God.’
G K Chesterton, What’s Wrong with the World.