What to read after Fichte's System of Ethics?

"Introduction Stefano Bacin and Owen Ware In the wake of Kant's works on moral philosophy, the Groundwork for the Metaphysics of Morals and the Critique of Practical Reason, many philosophers entered the ensuing debate on the foundations of morality and the content of its demands. Fichte's voice was one of the most powerful in this regard. From the early stages of his philosophical thought, Fichte felt an especially strong connection with the outlook of Kant's moral philosophy. In a 1790 letter to his close friend F.A. Weisshuhn, Fichte famously wrote: "I have been living in a new world ever since reading the Critique of Practical Reason" (GA III/1: 167). At the same time, Fichte's original project of a new systematic account of philosophy, the Doctrine of Science, included from the outset a part devoted to moral philosophy. Fichte's programmatic outline of a system accordingly mentioned "new theories of natural law and morality" (GA I/2: 151). This part of Fichte's project was fulfilled, only three years after the publication of the Foundations of the Entire Wissenschaftslehre, when the System of Ethics came out in April 1798, for the Ostermesse (see GA I/5: 2). The work was anticipated by the lectures on ethics that Fichte had been giving in Jena since 1796. As is witnessed by student notes (published in GA IV,1), he presented in those lectures a first version of the views put forward in the work that he published in 1798"--