This teaching is also repeated in one of his last works, Unum Necessarium (Only One is Needed), where he shows various labyrinths and problems in the world and provide simple solutions to various situation.
Esta ensinanza tamén se repite nun dos seus últimos traballos, Unum Necessarium (“Só un é necesario”), onde amosa varios labirintos e problemas do mundo e achega solucións simples a varias situacións.