Practice in tranquility.
I am attracted only to music which I consider to be better than it can be performed.
Have I a secret about playing the piano? It's a very simple one. I sit down on the piano stool and make myself comfortable - and I always make sure that the lid over the keyboard is open before I start to play.
I practice in my head.
It is not music's function to express rational necessities.
Children are given Mozart because of the small quantity of the notes; grown-ups avoid Mozart because of the great quality of the notes.