What we call world or reality are neither the world nor the reality. The reality is infinite, the world is inabarcable. What we know for world is only a fragment of it, an accesible small parcel to the cultivation of the reason, or rather, to the pertinacious working of our all being. If the reason is objective it is because the world presents regularities, existential constants, a unit in spite of the omnipresent change. Therefore, the reason is not the reality, but it builds and reflects the essential thing of it.