While philosophy pretends to be a discourse about reality as we perceive it, it has to pay tribute to “presence”, as we call it in this article. “Presence” is every phenomenal condition of the beings which are presented to psychism. In this sense, we find that Kant, in his Transcendental Idealism, depends on “presence” until the real subject appears, and the “presented” seems to change its foundation. Fichte’s Doctrine of Science, appeared at the time, defines “presence” in different terms; terms that, if correctly understood, grant us access to a new dimension of philosophy.