This article reconstructs the development of Husserl’s definition of metaphysics as the ultimate science of reality in the courses and lectures written up to the year 1905. The analysis of these texts casts light on Husserl’s philosophical self-understanding in the wider context of late Nineteenth Century German philosophy as well as on the fundamental role that metaphysical interests played in the development of his thought from its earliest stage. A particular attention is devoted to Husserl’s early views about the relation (...) between the theory of knowledge and metaphysics, whose analysis is a necessary preliminary step to address the theoretical issue of the relation between transcendental phenomenology and metaphysics. (shrink)