Radical thinkers: Ludwig Feuerbach on religion Subscribe to the Guardian HERE: http://bitly.com/UvkFpD Nina Power discusses the impact of the radical philosophy of the German thinker Ludwig Feuerbach. As one of the young Hegelian philosophers in the mid-19th century, he was one of the key influences on Marx. His most influential writings are collected in the Fiery Brook - a play on his own name - in which he offers a strident critique of Christianity.