Jürgen Habermas is a German philosopher and social theorist in the tradition of critical theory and pragmatism. His work addresses communicative rationality and the public sphere.

Friedrich Wilhelm Joseph Schelling, later von Schelling, was a German philosopher. Standard histories of philosophy make him the midpoint in the development of German idealism, situating him between Johann Gottlieb Fichte, his mentor in his early years, and Georg Wilhelm Friedrich Hegel, his one-time university roommate, early friend, and later rival. Interpreting Schelling's philosophy is regarded as difficult because of its evolving nature.