Toward a theory of praise

Rogoff's real hero, however, was Bobby Fischer, the American chess champion of the 1970s. He remembers following the games from the famous Fischer-Spassky world chess championship in 1972, and being awed by Fischer's play – "It was like seeing the hand of God at work; the originality, the simplicity." He shakes his head in delight and amazement. Fischer even paid the teenaged Rogoff the compliment of analysing and praising one of his games in an article. But Rogoff did not let that go to his head. "I took that to mean that he knew I could never beat him. Because I knew he was hyper-competitive. I completely understood the message," he chuckles.

Not sure if you can get through the FT link to the rest.  It is interesting throughout.