Zen Koans Explained: "The Most Valuable Thing in the World" Hamilton Nolan · 10/24/14 04:01PM "Walk the walk," we are often told by shallow thinkers. They presume this to be a metaphor for sincerity. They forget the footless. They neglect the legless. The rebuke the bottomless. The topless? "You can stay," says the horny fool, shallowly.