Karl Jaspers (1883-1969) took his degree in medicine but soon became interested in psychiatry. The author of a standard work of psychopathology, as well as special studies on Strindberg, Van Gogh and Nietsche. After World War I he became Professor of Philosophy at Heidelberg, where he achieved fame as a brilliant teacher and an early exponent of existentialism. He was among the first to acquaint German readers with the works of Kierkegaard.