In 1525 he filled the office of proctur in the university [Oxford]. His great work "concerning the cause of God against the Pelagians," was first delivered in the form of lectures at Oxford. These he afterwards, while chancellor of the diocese of London, at the request of the students of Merton, enlarged and polished. The publication of this book earned for its author the highest reputation. It was speedily in the hands of nil the learned men both in England and on the continent; and Bradwardine was thenceforward known by the title of "the profound doctor." His subject was treated with a mathematical accuracy, and his reasoning was pursued in one connected series of arguments, very different from the discursive remarks of the divines who had preceded him.