Whenever he went to Halle, Leipzig, or any other German city, he took Karl with him, and together they visited art galleries, natural history museums, zoölogical and botanical gardens, and manufacturing establishments. Not for a moment, however, did he hint to the boy that he was doing this for educational purposes. When, for example, they visited a factory, he did not say, “I have brought you here to give you a lesson in mechanics.” He allowed the boy to think that he simply wished to entertain him; and in this way, without Karl’s suspecting it, he was able to impart to him much elementary instruction in zoölogy, botany, physics, chemistry, etc. Similarly he taught Karl geography by the pleasing device of first taking him, on a clear day, to the top of a high tower that happened to be in Lochau, and asking him to mark on a piece of paper, brought to the tower for that purpose, the position of the different villages visible in the surrounding country. This first trip was followed by others, in which the boy expanded and corrected the markings on his paper, putting in rivers, lakes, and forests. Witte then bought for him a set of maps showing, in succession, the part of Germany in which he lived, all Germany, Europe, and the other continents. These father and son studied together, not as a study, but as a game, in which the boy took part with the greatest enthusiasm. “I never acted,” Witte himself has declared, “as though he had to learn these things. He would have been surprised if told that he had been studying geography, physics, chemistry. I avoided the mention of such terms, so as not to frighten him, and in order not to make him vain.” Not to make him vain! Be sure, indeed, that Pastor Witte, while promoting his son’s mental development, would not forget to ground him in moral principles. He was not, let it be clearly understood, striving to make an intellectual “prodigy” of his son; he was aiming only to make him a man in the truest sense, strong physically and morally as well as mentally. If he believed that the boy’s reasoning powers could not be properly developed unless he were trained from infancy in the principles of sound reasoning, he was quite as firmly convinced that the process of moral education should likewise begin at the earliest possible moment. To this end, believing as he did in the importance of early environmental influences and of parental example, he endeavoured to secure for his son wholly ennobling surroundings.