 One man out of the thirty does not set the ship in motion on his own, [but] when his moving action (motio) joins the preparation and the  power[13]  coming from the 29 men, [he] will necessarily set in motion the whole ship; therefore each of the 29 gives to the ship a preparation to move (moveri) that it did not have before. (LC 336G; LC Schmieja 79:8–12)