Today, his criticisms of the laxness and frequent abuses of his day are generally recognized on all sides as a response to very real problems. It was perhaps inevitable, however, that they should arouse resentment in his own day (Luther, and for that matter many of his opponents, had controversial manners that my high school speech teacher and debate coach would never have tolerated!), and he spent much of his life in conflict with the ecclesiastical authorities. The disputes were complicated by extraneous political considerations on both sides, and, as one of his admirers has observed, each side was at its best when proclaiming what the other side, well considered and in a cool hour, did not really deny. Luther, for example, was most ardent in maintaining that salvation was a free gift of God, and that all attempts to earn or deserve it are worse than useless. But he was not alone in holding this. When his followers met in 1540 with Cardinal Contarini, the Papal delegate, in an effort to arrive at an understanding, there was complete agreement on this point. The Cardinal, by a study of the Epistle to the Romans, had arrived in 1511 at the same position as Luther in 1517. So had Cardinal Pole, the Archbishop of Canterbury (who had, ironically, been appointed to combat Luther's influence). So had the Archbishop of Cologne, and so had many other highly placed Church officials.
In Luther's own judgement, his greatest achievement was his catechism, by the use of which all Christians without exception might be instructed in at least the rudiments of the Faith. Some of his admirers, however, would insist that his greatest achievement was the Council of Trent, which he did not live to see, but which he was arguably the greatest single factor in bringing about. While the Council's doctrinal pronouncements were not all that Luther would have wished, it did take very much to heart his strictures on financial abuses, and undertook considerable reforms in those areas. It banned the sale of indulgences and of church offices, and took steps to provide for the systematic education of the clergy. Putting it another way, if I were arguing with an adherent of the Pope, and I wanted to point out to him that many Popes have been, even by ordinary grading-on-a-curve standards, wicked men, cynically exploiting their office for personal gain, I would have no difficulty in finding examples from the three centuries immediately preceding Luther and the Council of Trent that my opponent would have to concede. If I were restricted to the centuries afterward, I should have more of a problem. And this is, under God, due in some measure to Luther's making himself a nuisance. Thanks be to God for an occasional nuisance at the right time and place.
Behold, Lord An empty vessel that needs to be filled. My Lord, fill it I am weak in the faith; Strengthen me. I am cold in love; Warm me and make me fervent, That my love may go out to my neighbor... O Lord, help me. Strengthen my faith and trust in you... With me, there is an abundance of sin; In You is the fullness of righteousness. Therefore I will remain with You, O whom I can receive, But to Whom I may not give. -Martin Luther (1483-1546)