Professor Helwig commends especially the methodology in Ratke’s plan, and urges that we must consider not only the knowledge to be imparted, but as well the method of imparting knowledge. He says: “Nature does much, it is true, but when art assists her, her work is much more certain and complete. Therefore it is necessary that there should be an especial art to which any one who desires to teach can adhere, so that he shall not teach by mere opinion and guess, nor by native instinct alone, but by the rules of his art; just as he who would speak correctly by the rules of grammar, and he who would sing correctly by the rules of music. This art of teaching, like the art of logic, applies to all languages, arts, and sciences. It discusses among other things how to distinguish among minds and gifts, so that the quicker may not be delayed, and that, on the contrary, those who are by nature not so quick may not remain behind; how and in what order to arrange the exercises; how to assist the understanding; how to strengthen the memory; how to sharpen the intellect without violence and after the true course of nature. This art of teaching, no less than other arts, has its fixed laws and rules, founded not only upon the nature and understanding of man, but upon the peculiarities of languages, arts, and sciences; and it admits of no ways of teaching which are not deduced from sure grounds and founded upon proof.” The Jena professors were no less favorable with regard to this new art of teaching. The influence of this report on the fame of Ratke was far-reaching. The following year (1614) he was invited to Augsburg to reform the schools of that city. This invitation was the outgrowth of a study of his plan by David Höschel, the principal of St. Anne’s School, and two other teachers appointed by the city to accompany him to Frankfort and aid him in the investigation. They reported that Ratke had so far explained his method to them that they were satisfied and pleased with it; and the invitation to Ratke promptly followed. Beyond a few monographs by the Augsburg disciples, based on his method, and inspired doubtless by his sojourn there, we are altogether without evidence of the success or failure of the reforms at Augsburg. Early in 1616, Prince Ludwig of Anhalt-Gotha yielded to the persuasions of his sister, the Duchess Dorothea of Weimar, and invited Ratke to Gotha to organize the schools there in accordance with his views. He engaged to organize and supervise the schools and to instruct and train the teachers, but he bound the prince to exact from each teacher a promise not to divulge his method to any one.