Abstract: Make a comparison between Fichte’s and Giovanni Gentile’s philosophy it’s a difficult task, even if through careful analysis of the central themes of the two authors, this comparison can be made, particularly in reference to the theme of the action: this concept leads in both to the consideration of reality as immanent. This vision of reality, together with the strong moral connotation of their philosophy, makes the task we set ourselves less complicated, and it allows me to affirm how in their thought there are moments of great originality, such as to be able to withstand the challenges of contemporary philosophy, rather than being relegated to a marginal position, which considers them as a moment of transition between Kant’s criticism and Hegel’s idealism. The central theme of this paper will be, therefore, the Fichte’s and Gentile’s personal vision of idealism that springs from the concept of action, which maintains a constant tension between different elements, allowing the production of a reality characterized by a radical transcendental vision, therefore immanent. Later, such immanence, in the development of thought from the theoretical to the praxis, assumes meaning and explicability in a sort of transcendence, and this apparent contradiction will be addressed in the second part of my paper: I try to demonstrate how the two authors can still make an important contribution to contemporary philosophy, especially in relation to metaphysical issues, that in our days are often understood as something anachronistic and not very functional to the development of scientific thought.
