Luther had a very sharp and satirical style, but his Commentary on the Epistle to the Galatians was his favorite work. His favorite doctrine was justification by faith alone, and not by works, moral, legal, or evangelical, but we must do him the justice to observe, that he perpetually inculcated the absolute necessity of good works. According to him, a man is justified only by faith, but he cannot be justified without works, and where those works are not to be found, there is assuredly no true faith... His followers called themselves Lutherans, much against his mind, but they recede from him in many things, as may be seen by their writings... Melancthon says, 'I am a logician, and Justus Jonas is an orator, but Luther is good at everything: the wonder of mankind, for whatever he says, or writes, it penetrates the heart, and makes a lasting impression." (Excerpts from "Life of Luther, " in Luther's Commentary on... Galatians, p. lxx).