I need not say that the days passed quickly, and the time was coming for me to return to school. I scarcely allowed myself to think of leaving Mr. Percy and his pleasant home. When I did so, a choking lump would come into my throat and a pain into my heart that brought tears to my eyes. What boy has not felt this? I hardly dared hint at my feeling, but one day when Mr. Percy suggested some preparation for going, I said I was sorry to leave. “Yes, Charles, so am I sorry to have you go. But I wish you to make a man of yourself, and this can be done only by discipline of the mind and the acquisition of knowledge, and the best place for this is in school. Manly strength comes from exercise of the body, mental strength from using the mind, and both should go together. If you neglect the culture of both, except to ornament the body with clothes, you become a fop or swell. If you improve the body only, you are simply a muscular animal or strong brute. Neglect the body and only cultivate the mind, and you may become a mental phenomenon, a dyspeptic growler. A trained mind in a trained body, is the way to put it; otherwise there is incongruity, as much as to speak of cleanly people living in a filthy house or filthy people living in a clean house. I said discipline of mind. This comes by thinking for yourself, reasoning with intense thought, and retaining what you learn. A man mentally strong is not the one who simply knows the most, but the one who has power to think, to reason, grasp facts, compare them and make conclusions. The most of the educated natives have acquired knowledge by memory, to the neglect of their reasoning faculties, and are like trained parrots. One with disciplined reasoning faculties has always the advantage over the one who is only a memorizer. The former is able to use the material he may find in his way, while the other has the materials but is unable to use them. Therefore get discipline, reasoning power first of all, and the other will naturally follow. You must labor with your mind as with the body. You may come across the story of the man who began by lifting the calf, and continued it daily, so that when the calf became an ox he could lift it as well. Strength of mind is acquired by constant study, mental lifting. The boy who at first lifts the light weight of the multiplication table and goes on lifting something heavier each day, will find at length no difficulty in grappling with Newton’s Principia. The training of either mind or body should not be by spurts or sudden starts. You cannot violate the laws of growth, either mental or physical, and be a really well developed man, any more than you can violate God’s natural or moral laws six days of the week and expect to make up for it on the seventh day. I do not want you to be a seventh-day sort of a man, but to be real and true every day and every hour you live.”