Still more characteristic of Isaac ben Sheshet is his quarrel with Chayim ben Gallipapa, a rabbi, stricken in years, whose opinions differed from those of the rabbi of Saragossa. This man (born 1310, died 1380), rabbi of Huesca and Pampeluna, was a singular figure in the Middle Ages, whom it is difficult to classify. Whilst the rabbis of the time, particularly since the rise of the Asheride teaching, exceeded all bounds in the imposition of burdensome observances, and always, in cases of doubt, decided in favor of their most rigorous fulfillment, Gallipapa took the opposite view, and maintained that the aim of all Talmudical exegesis should be to disencumber life. The times, he considered, had improved, and neither the ignorance of the people nor the fear of defection was so great as to warrant such severity. This principle was no mere theory with Gallipapa, for he followed it practically. The freedom he suggested concerned matters of comparative insignificance, but at that time every trifle was regarded as important. On certain dogmas, also, Gallipapa held independent views. The Messianic belief which, since the time of Maimonides, had become an article of faith, to deny which was heresy, he boldly set aside. Gallipapa considered that the prophecies, in Isaiah and Daniel, of the great prosperity of Israel in the future, had been fulfilled in the days of the Maccabees, and wrote a work on the subject. Against this hardy innovator, a storm naturally arose. A neighboring rabbi, Chasdaï ben Solomon, of Tudela, a man of not over-fine sensibilities, denounced him to Isaac ben Sheshet, and the latter lectured the venerable Gallipapa, who had sent disciples into the world, as if he had been a mere schoolboy. He adjured Chayim Gallipapa to avoid scandal and give no opportunity for schism amongst his brethren. The modest attempt at reform went no further.