I was at a music camp, and the guest artist was Richard Raymond. We had a master class with him that lasted 3 hours.
Just to say that I was very decieved by him: I found him arrogant, grumpy, self-complimenting.
People are not always what you think they are.
It is not because he is very talented that he can permit himself to say that a 14 year old who plays the 1st Ballade by Chopin not in a perfect way makes 'noise, not music'.