French philosophy French philosophy French philosophy, here taken to mean philosophy in the French language, has been extremely diverse and has influenced Western philosophy as a whole for centuries, from the medieval scholasticism of Peter Abelard, through the founding of modern philosophy by René Descartes, to 20th century philosophy of science, existentialism, phenomenology, structuralism, and postmodernism. Peter Abelard (1079 – April 21, 1142) was a scholastic philosopher, theologian and logician. The story of his affair with and love for Héloïse has become legendary. The "Chambers Biographical Dictionary" describes him as "the keenest thinker and boldest theologian of the 12th Century". The general
German philosophy German philosophy German philosophy, here taken to mean either (1) philosophy in the German language or (2) philosophy by Germans, has been extremely diverse, and central to both the analytic and continental traditions in philosophy for centuries, from Gottfried Wilhelm Leibniz through Immanuel Kant, Georg Wilhelm Friedrich Hegel, Arthur Schopenhauer, Karl Marx, Friedrich Nietzsche, Martin Heidegger and Ludwig Wittgenstein to contemporary philosophers. Søren Kierkegaard (a Danish philosopher) is frequently included in surveys of German (or Germanic) philosophy due to his extensive engagement with German thinkers. Gottfried Wilhelm Leibniz (1646–1716) was both a philosopher and a mathematician who wrote primarily in