Widely dispersed harmonies may sometimes produce a good effect, but not by too frequent and too eager an employment of them at every opportunity.

Even the greatest beauties in art can lead to mannerism, and this again to one-sidedness.
Art should be many-sided, and you must never produce the impression that you are inclined to make the means an end.

I beg you to reflect that too much practice of very wide stretches enfeebles the muscles and the power of the hand and fingers, endangers an even, sound touch, and makes the best style of playing a doubtful acquisition.

Teachers ought therefore to use great prudence, and only gradually to permit their pupils, especially young girls, to practise great extensions and wide stretches.
To learn to be able to strike ten notes is quite enough.
6.

Before you perform a piece, play a few suitable chords, and a few appropriate passages or scales up and down (but play no stupid trash, such as I have heard from many _virtuosos_), in order to try whether the condition of the instrument presents any unexpected difficulties.