Well, no. I believe that it's not at all impossible that some of the performances that I've heard so far by some pianists may be superior to my own playing because those are two totally different acts altogether.

Though he gave his last public concert before the age of forty he continued writing music for another half-century and beyond. His performances of works by avant-garde composers and his own innovative and even shocking pieces made him a cause célèbre on both sides of the Atlantic.