"What struck me about Prokofiev’s playing was its remarkable simplicity. Not a single superfluous gesture, not a single exaggerated expression of emotion, no striving for effect. The composer seemed to be saying, “I refuse to embellish my music in any way. Here it is. You may take it or leave it.” There was a sort of inner purity of purpose behind the whole performance that made an unforgettable impression. He played his Toccata with great inner force (while outwardly appearing perfectly calm and unmoved).... The tempestuous, defiant Prokofiev at [lyrical] moments became as touching as a child. The fact that Prokofiev could be poetic and moving came as a surprise to many."
January 1, 1970
https://en.wikiquote.org/wiki/Sergei_Prokofiev