Heinrich Neuhaus

“It is only by demanding the impossible of the piano that you can obtain from it all that is possible. For the psychologist this means that imagination and desire are ahead of the possible reality. A deaf Beethoven created for the piano sounds never heard before and thus predetermined the development of the piano for several decades to come. The composer's creative spirit imposes on the piano rules to which it gradually conforms. That is the history of the instrument's development. I don't know of any case where the reverse occurred.”
― Heinrich Neuhaus, The Art of Piano Playing

“I urge pupils when studying a work and in order to master its most important aspic, the rhythmic structure, or the ordering of the time process, to do just what a conductor does with the score: to place music on the desk and to conduct the work from beginning to end as if it were played by someone else, an imaginary pianist with the conductor trying to impress him with his will, his tempo first of all, plus all the details of his performance.”
― Heinrich Neuhaus, The Art of Piano Playing