I want to know the answer to the following question:
What writing of Chopin talks about everything about piano playing has to do with proper fingering?
All the background I'm provided with is that "In his Projet de méthode he wrote: "Everything is a matter of knowing good fingering ... we need no less to use the rest of the hand, the wrist, the forearm and the upper arm."". Is that enough to answer the question?
Answer: yes