The “Orbis Sensualium Pictus” of Comenius, published in 1658, was the beginning of the modern method of object teaching. For this alone Comenius might deserve the admiration of those who call him “the greatest of all pedagogues,” even if he were not the author of “The Great Didactic,” in which he founded the modern science of pedagogy. He considers children as immortal beings with a supernatural character which, while it is never to be lost sight of, is to be carefully studied in its analogy to the whole order of nature. He was a pupil of Böhme and, as a matter of course, he is frequently mediæval in his habit of thought and expression. But his work as a whole shows an intellect above the limitations of his own or any other century. He was born at Nivnitz, Moravia, in 1592, and educated chiefly at Herborn and Heidelberg. After his return to his native province he became bishop of the Moravian Brethren and supported himself as a teacher of Latin at Lissa. His “Janua Linguarum Reserata” (1631) made him famous, but it is by “The Great Didactic” that he is now chiefly remembered. He died in Holland.