rt 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 t