When you play, never mind who listens to you.

the study of jurisprudence, by which I must earn my bread, has so withered and frozen the flowers of my fancy that they will never again seek the light. (To his Mother, November 11, 1829)

Endeavour to play easy pieces well and with elegance; that is better than to play difficult pieces badly.

If, while at the piano, you attempt to form little melodies, that is very well; but if they come into your mind of themselves, when you are not practising, you may be still more pleased; for the internal organ of music is then roused in you. The fingers must do what the head desires; not the contrary.

You write to become immortal, or because the piano happens to be open, or you've looked into a pair of beautiful eyes.

You will be most readily cured of vanity or presumption by studying the history of music, and by hearing the master pieces which have been produced at different periods.