We're not hunter-gatherers anymore. We're all living like patients in the intensive care unit of a hospital. What keeps us alive isn't bravery, or athleticism, or any of those other skills that were valuable in a caveman society. It's our ability to master complex technological skills. It is our ability to be nerds. We need to breed nerds.
Give up your attachment to comfortable ways of living - show yourself in the gymnasium (gymnos = 'naked'), prove that you are not indifferent to the difference between perfect and imperfect, demonstrate to us that achievement - excellence, arete, virtu - has not remained a foreign word to you, admit that you have motives for new endeavours! Above all: only grant the suspicion that sport is a pastime for the most stupid as much space as it deserves, do not misuse it as a pretext to drift further in your customary state of self-neglect, distrust the philistine in yourself who thinks you are just fine as you are! Hear the voice from the stone, do not resist the call to get in shape! Seize the chance to train with a god!