My research is thoroughly interdisciplinary, in political theory, philosophy, and intellectual history. It combines archival and historical work with systematic analysis. The focus is German thought from Leibniz to Hegel and the Hegelian School, exploring linkages among Leibniz, Kant, post-Kantian idealists, and the Romantics, and underlining contemporary relevance. At the core of the programme is the historical and comparative analysis of modern ideas of freedom, citizenship, social interaction, and relations between state and economy. My publications have appeared in seven languages.