The Leibniz’s criticism to nominalism provides the metaphysic a more powerful (modal) logic rather than the extensional one of late-medieval period. At the same time he finds a prosecutive way of thinking that allows the systematization of the intelligibility. I maintain that on the formulation of Leibniz’s ontological argument, one can find the cognoscitive subject. Nevertheless, and in a similar way as Hegel, like Leibniz did not elaborate logic of productive action of inteligible possibility, the facticity introduces itself in the subjects of the monada and on the Self.