Rabbi Yosef Dov (Bär) ha-Levi Soloveitchik was one of the most important representatives of modern Jewish theology in the 20th century. In his reflection Confrontation, he first outlined the thesis of a "dual species" of man, based on an interpretation of the dual biblical account of his creation. This thesis then became the basis for Soloveitchik's essay, The Lonely Man of Faith.
Czech edition