Let us look at a few of those to whom expression has come of itself.

X.plays skilfully and correctly, but his expression continues crude, cold, monotonous; he shows too pedantic a solicitude about mechanical execution and strict time; he never ventures on a _pp._, uses too little shading in _piano_, and plays the _forte_ too heavily, and without regard to the instrument; his _crescendi_ and _diminuendi_ are inappropriate, often coarse and brought in at unsuitable places; and--his _ritardandi_! they are tedious indeed! "But Miss Z.plays differently and more finely." Truly, she plays differently; but is it more finely?
Do you like this gentle violet blue, this sickly paleness, these rouged falsehoods, at the expense of all integrity of character?
this sweet, embellished, languishing style, this _rubato_ and dismembering of the musical phrases, this want of time, and this sentimental trash?
They both have talent, but their expression was allowed to be developed of itself.

They both would have been very good players; but now they have lost all taste for the ideal, which manifests itself in the domain of truth, beauty, and simplicity.
If pupils are left to themselves, they imitate the improper and erroneous easily and skilfully; the right and suitable with difficulty, and certainly unskilfully.

Even the little fellow who can hardly speak learns to use naughty, abusive words more quickly and easily than fine, noble expressions.

What school-master has not been surprised at this facility, and what good old aunt has not laughed at it?
But you say, "It is not right to force the feelings of others!" That is quite unnecessary; but it is possible to rouse the feelings of others, to guide and educate them, without prejudicing their individuality of feeling, and without restraining or disturbing them, unless they are on the wrong path.