The most necessary, the most important, the principal, the most essential thing for a musician is this: to know what he wants, what he can do, and what he ought to do.

The more we learn, the more we realize how little we know.

我知道，有个道理你们已经听过成千上万次了。但那是真的：艰辛的工作带来回报。如果你希望好起来，你就必须练习、练习，再练习。