No historical study of current issues--politics or social science or theology--can far proceed without bringing the student face to face with the principles asserted by the Reformation of the Sixteenth Century and its great leader, Martin Luther. He has had many critics and many champions, but neither his critics nor his champions feel that the last word concerning him has been spoken, for scarcely a year passes that does not witness the publication of a new biography.
Had Luther been nothing more than a man of his own time and his own nation the task of estimating him would long since have been completed. A few exhaustive treatises would have answered all demands. But the Catalogue of the British Museum, published in 1894, contains over two hundred folio pages, averaging about thirty-five titles to the page, of books and pamphlets written either by or about him, that have been gathered into this single collection, in a land foreign to the sphere of his labors, and this list has been greatly augmented since 1894. Above all other historical characters that have appeared since the first years of Christianity, he is a man of the present day no less than of the day in which he lived.