We can not make the plant blossom--all we can do is to comply with the conditions of growth. We can supply the sunshine, moisture and aliment, and God does the rest. In teaching, he only is successful who supplies the conditions of growth--that is all there is of the Science of Pedagogics, which is not a science, and if it ever becomes one, it will be the Science of Letting Alone, and not a scheme of interference. Just so long as some of the greatest men are those who have broken through pedagogic fancy and escaped, succeeding by breaking every rule of pedagogy, as Wagner discarded every Law of Harmony, there will be no such thing as a Science of Education. Recently I read Aristotle's Essays on Rhetoric and Oratory, and I was pained to see how I had been plagiarized by this man who wrote three hundred years before Christ. Aristotle used charts in teaching and indicated the mean by a straight horizontal line, and the extreme by an upright dash. He says: "From one extreme the mean looks extreme, and from another extreme the mean looks small--it all depends upon your point of view. Beware of jumping to conclusions, for beside the appearance you must look within and see from what vantage-ground you gain the conclusions. All truth is relative, and none can be final to a man six feet high, who stands on the ground, who can walk but forty miles at a stretch, who needs four meals a day and one-third of his time for sleep. A loss of sleep, or loss of a meal, or a meal too much, will disarrange his point of view, and change his opinions," And thus do we see that a belief in "eternal punishment" is a mere matter of indigestion. A certain bishop, we have seen, experienced a regret that Darwin expended so much time on earthworms; and we might also express regret that Aristotle did not spend more. As long as he confined himself to earth, he was eminently sure and right: he was really the first man who ever used his eyes. But when he quit the earth, and began to speculate about the condition of souls before they are clothed with bodies, or what becomes of them after they discard the body, or the nature of God, he shows that he knew no more than we. That is to say, he knew no more than the barbarians who preceded him.