[Karl Bonhoeffer, his personality, his work, his effect].

This paper is mainly based on the biographical publications of prominent pupils of Bonhoeffer's, Bonhoeffer's own memoirs and his scientific works as well as documents that still exist at the Berlin clinic. The proposal is made that on the occasion of the awarding of the Karl-Bonhoeffer Prize, which takes place every three years, a Karl-Bonhoeffer memorial lecture be read dealing with a subject connecting psychiatry and neurology.