 He rejected the concept of purgatory, and disapproved of clerical celibacy, pilgrimages, the selling of indulgences and praying to saints.So far as his polemics accord with those of earlier antagonists of the papacy, it is fair to assume that he was not ignorant of them and was influenced by them.It was Wycliffe who recognised and formulated one of the two major formal principles of the Reformation – the unique authority of the Bible for the belief and life of the Christian.