 A second a priori proof offered by Suárez (DM XXX.1.6) is that: (i) God is the most perfect not only of all existing beings but also of all possible beings; (ii) therefore—for reasons explained below—God must be perfect in a higher sense than all other possible beings; (iii) this higher sense of perfection consists in containing the perfections of all other possible beings. The first premise (i) is shown thus: if there is a more perfect being than God, either it is a necessary being and exists in act, or it is not yet existent and would be produced by something else in order to exist. If this other, productive entity already exists, then we do not have a possible being which more perfect than every actual being. On the other hand, this entity could not be merely possible, since a less perfect being cannot create a more perfect being. The question thus arises: who or what would be able to create it? It follows, then, that it is not possible to think of a possible being more perfect than God. That (ii) follows from (i) is shown thus: if the first being does not contain all the perfections of other beings, it is not the most perfect of all possible beings since in that instance one could think of a possible being that is at least as perfect as the first being. It would then contain all the other perfections.