They state that throughout much of history Christians treated Jews worse, saying that Jews in Christian lands were subjected to worse polemics, persecutions and massacres than under Muslim rule.[8] According to Walter Laqueur, the varying interpretations of the Quran are important for understanding Muslim attitudes. Many Quranic verses preach tolerance towards the Jews; others make hostile remarks about them (which are similar to hostile remarks made against those who did not accept Islam). Muhammad interacted with Jews living in Arabia: he preached to them in hopes of conversion, he fought against and killed many Jews, while he made friends with other Jews.[9] For Martin Kramer, the idea that contemporary antisemitism by Muslims is authentically Islamic "touches on some truths, yet it misses many others".