I hate the word practice. Practice breeds inurement. Instead of discovering, of distinguishing traits that are deeply hidden or merely veiled, one ends seeing nothing anymore. One ceases to be aware.

The task of a teacher is not to work for the pupil nor to oblige him to work, but to show him how to work.

Friendship is more important than truth.

Blessed is he who invented recording! But what a pity that he was not born centuries earlier! Think only of all that we would be able to hear and therefore understand better. Oh, the unending research in libraries and museums, the readings and collations of texts, the maddening desire to know the truth!

Jazz is not a game of chance. Its sonorous disorder is only an appearance. It is an organized force obeying obscure laws, conforming to a secret technique, codified or not, and we discover that no one can become a virtuoso on the spur of the moment in this orchestra of 'noisemakers.

I never practice; I always play.

The works of Mozart may be easy to read, but they are very difficult to interpret. The least speck of dust spoils them. They are clear, transparent, and joyful as a spring, and not only those muddy pools which seem deep only because the bottom cannot be seen.