Germany was aroused. “In 1525 he was commissioned by the Duke of Mansfield to establish two schools in his native town, ... one for the primary and the other for secondary instruction.” They were not conducted after the manner of papal schools, differing only in the fact that the teacher was a Protestant. “Both in the course of study and in the methods of instruction these schools become models after which many others were fashioned.... In a few years the Protestant portion of Germany was supplied with schools. They were still defective, ... but, at the same time, they were greatly superior to any that had preceded them. Though no complete system of popular instruction was established, the foundation for it was laid. To this great result, Luther contributed more than any other man of his time; and _this fact makes him the leading educational reformer of the sixteenth century_.”[122] [Sidenote: No compromise] The changes wrought by Luther were not mere superficial, formal changes; but as the Reformation, as a religious movement, struck a death-blow to the papacy, viewed as an educational movement, it is found to have cut directly across the established methods of popular education. It meant a change in the _courses_, a different idea of _graduation_, a change in _text-books_, in _methods of teaching_, _methods of study_, and _character of the teachers_. [Sidenote: Value of nature study] He was perhaps the first of the reformers to recognize the value of nature study. He once said: “We are at the dawn of a new era; for we are beginning to recover the knowledge of the external world that we have lost since the fall of Adam. Erasmus is indifferent to it; he does not care to know how fruit is developed from the germ. But by the grace of God, we already recognize in the most delicate flower the wonders of divine goodness and the omnipotence of God. We see in His creatures the power of His word. He commanded, and the thing stood fast. See that force display itself in the stone of a peach. It is very hard, and the germ that it incloses is very tender; but, when the moment has come, the stone must open to let out the young plant that God calls into life.”[123] It may at first seem strange that the bold, brave man who aroused the world by his theses nailed to the church door, should have a character to which the gentleness of nature made such a strong appeal. But Luther was a true preacher in that he was a teacher. What wonder that his work was enduring! It stands close beside the life-work of his Master, Jesus,—the Teacher sent of God. [Sidenote: Melancthon, Luther’s companion in education]