Plato believed the gods had aimed our eyes and feet forward because looking backward, though necessary sometimes, was less important for the fulfillment of tasks than getting on with them. We were contrived to swivel suddenly and jump, to hang on and wait for the right moment to let go and run for it. Our lateral symmetry and our bundle of bones allowed for that and for simply walking away, maintaining the balance of our burdens with our well-defined hands and fingers, sometimes more eloquent than our mouths. He thought the spherical skull had been fashioned purposefully in the manner of sun and moon to keep the house of the soul from being broken into by intruders. Our apparatus stood to reason and sat to think better of it, knelt to save what little it could, crouched to be slightly less apparent, or lay down curled to be shut against (or at length more open to) the wisdom of the night.