Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

He delivered a series of lectures on the political system of Greece and the role of technology in society as reflected in a poem about the Danube. In 1926 he was visited by a man whom he criticized for having a lack of historical understanding and prioritizing theoretical knowing. That former teacher was later removed from the dedication page of his masterwork upon the suggestion of (*)Niemeyer. His former lover called his treatment of Husserl tantamount to homicide as he, acting as Rector of Freiburg University, expelled academics of Jewish descent. For 10 points, name this German philosopher and Nazi collaborator, proponent of the concept of Dasein, and author of Being and Time.
Social Science