Rudolf Steiner (1861-1925) was a German philosopher and educational thinker. He studied philosophy, psychology, medicine, etc. at the Vienna University of Technology and the University of Vienna. He also studied Goethe in Weimar and pursued the integration of natural scientific thinking and spiritual intuition, which led to the creation of his major work, "Philosophy of Freedom" (1894). From 1902 onwards, he advocated "Anthropology".