Rudolf Otto, the German theologian, was born at Peine in Hanover. He studied at Erlangen and Göttingen, where he became a Privatdozent in systematic theology in 1897. In 1904 Otto was appointed professor of systematic theology at Göttingen. He accepted similar posts at Breslau in 1914 and at Marburg in 1917, where he remained until his death. In addition to his philosophical work, Otto published works on Christ, on Indian religious thought and its relation to Christianity, and on various theological topics.

Religious Feeling and Religious Knowledge

Otto's most significant philosophic contribution is to be found in his discussion of religious feeling and religious knowledge—a discussion that begins with his earliest work and culminates in The Idea of the Holy.

In Naturalism and Religion (1904) Otto discusses the relation of religion to a naturalism that demands that everything be explained on the basis of mathematical-mechanical laws...