Maimonides's Mishneh Torah is considered by traditionalist Jews even today as one of the chief authoritative codifications of Jewish law and ethics. It is exceptional for its logical construction, concise and clear expression and extraordinary learning, so that it became a standard against which other later codifications were often measured. It is still closely studied in rabbinic yeshivot (academies). A popular medieval saying that also served as his epitaph states, From Mosheh (of the Torah) to Mosheh (Maimonides) there was none like Mosheh. It chiefly referred to his rabbinic writings. But Maimonides was also one of the most influential figures in medieval Jewish philosophy. His brilliant adaptation of Aristotelian thought to Biblical faith deeply impressed later Jewish thinkers, and had an unexpected immediate historical impact. Some more acculturated Jews in the century that followed his death, particularly in Spain, sought to apply Maimonides's Aristotelianism in ways that undercut traditionalist belief and observance, giving rise to an intellectual controversy in Spanish and southern French Jewish circles. The intensity of debate spurred Catholic Church interventions against "heresy" and even a general confiscation of rabbinic texts. In reaction, the more radical interpretations of Maimonides were defeated, and at least amongst Ashkenazi Jews, there was a tendency to ignore his specifically philosophical writings and to stress instead the rabbinic and halakhic writings. These writings often included considerable philosophical chapters or discussions in support of halakhic observance; David Hartman observes that Maimonides clearly expressed "the traditional support for a philosophical understanding of God both in the Aggadah of Talmud and in the behavior of the hasid [the pious Jew]." Maimonidean thought continues to influence traditionally observant Jews.