 In 1569 there was a furious exchange of letters between Ramus and one of the most prominent and learned Aristotelians of his day, Jacob Schegk (1511–1587), a professor at the University of Tübingen. The conflict may not have been based solely on a difference of philosophical opinions. Schegk had a grudge against Ramus, who had pulled one of his books to pieces. The discussion nevertheless forced Ramus to reconsider some of his positions.