But it’s no use his trying to persuade his master that the little cuttlefish are spiders, for they are not the least like them.  It’s no use hiding things,—­they are sure to come to light; and so it is with the heart,—­its purposes will out.  If the heart is enraged, the dark veins stand out on the forehead; if the heart is grieved, tears rise to the eyes; if the heart is joyous, dimples appear in the cheeks; if the heart is merry, the face smiles:  thus it is that the face reflects the emotions of the heart.  It is not because the eyes are filled with tears that the heart is sad; nor because the veins stand out on the forehead that the heart is enraged.  It is the heart which leads the way in everything.  All the important sensations of the heart are apparent in the outward appearance.  In the “Great Learning” of Koshi it is written, “The truth of what is within appears upon the surface.”  How then is the heart a thing which can be hidden?  To answer when reproved, to hum tunes when scolded, show a diseased heart; and if this disease is not quickly taken in hand, it will become chronic, and the remedy become difficult:  perhaps the disease may be so virulent that even Giba and Henjaku[99] in consultation could not effect a cure.  So, before the disease has gained strength, I invite you to the study of the moral essays entitled Shin-gaku (the Learning of the Heart).  If you once arrive at the possession of your heart as it was originally by nature, what an admirable thing that will be!  In that case your conscience will point out to you even the slightest wrong bias or selfishness.

[Footnote 99:  Two famous Indian and Chinese physicians.]

While upon this subject, I may tell you a story which was related to me by a friend of mine.  It is a story which the master of a certain money-changer’s shop used to be very fond of telling.  An important part of a money-changer’s business is to distinguish between good and bad gold and silver.  In the different establishments, the ways of teaching the apprentices this art vary; however, the plan adopted by the money-changer was as follows:—­At first he would show them no bad silver, but would daily put before them good money only; when they had become thoroughly familiar with the sight of good money, if he stealthily put a little base coin among the good, he found that they would detect it immediately,—­they saw it as plainly as you see things when you throw light on a mirror.  This faculty of detecting base money at a glance was the result of having learned thoroughly to understand good money.  Having once been taught in this way, the apprentices would not make a mistake about a piece of base coin during their whole lives, as I have heard.  I can’t vouch for the truth of this; but it is very certain that the principle, applied to moral instruction, is an excellent one,—­it is a most safe mode of study.  However, I was further told that if, after having thus learned to distinguish good money, a man followed some other trade for six months or a year, and gave up handling money, he would become just like any other inexperienced person, unable to distinguish the good from the base.