Jaime Balmes lottery, or to achieve write something coherent by moving the pen randomly on the paper. For Balmes, these are the three pillars of metaphysics. To better define this, there is an analysis of the " cogito ergo sum " Cartesian, according to which the affirmation of the "I think, therefore I exist" Cartesian is in principle a truth of conscience, later transformed into an intellectual truth of evidence, a logical syllogism whose reality is understood through intuition. Having founded the " cogito " on something intellectual, Descartes falls into the risk of reducing the " cogito " to something logical
Cogito, ergo sum of other minds at this point. This is something that has to be thought through by each of us for ourselves, as we follow the course of the meditations. Second, he does not say that his existence is necessary; he says that "if he thinks", then necessarily he exists (see the instantiation principle). Third, this proposition "I am, I exist" is held true not based on a deduction (as mentioned above) or on empirical induction but on the clarity and self-evidence of the proposition. Descartes does not use this first certainty, the "cogito", as a foundation upon which to build