As much as philosophy, also history, politics and social science interested Claudio Cesa when, after graduating at the Scuola Normale of Pisa, he was a young research fellow in Paris and in Germany. His work on the Hegelians - Feuerbach, Bauer, Stirner and Zeller - is based on a comparison between their doctrines and Hegel’s philosophy. His political philosophy is the subject of studies by Cesa during the 1970s, when he nonetheless also started to work on the political thinking of Schelling, Fichte and the Romantics. The core of his work is a comparison of their positions on single relevant aspects, taking also into account Kant as their common antecedent. From the middle of the 1970s Cesa began to question the terms "idealism" and "transcendental", in which he saw the key for investigating the entire theoretical philosophy of that age. His last investigations concern Hegel’s philosophy of religion and of art.
Keywords: German philosophy, Right and Left Hegelians, political and theoretical philosophy, Kant, Fichte, Hegel