The Chess Mind

Here's a fun one:

Word was getting around about Bobby Fischer. From the first rumors of a talented kid from Brooklyn, he was now appearing regularly at the speed tournaments, and getting progressively better scores. At one point, however, I had beaten him four times in a row, and he cried at least once, revealing the depth of his intensity for the game. But one night at the Marshall Chess Club rapids we played a French Defense and a very peculiar thing happened. In the middle of the game Bobby made a strong move and I suddenly had an almost physical sense of the power emanating from it. And Bobby moved again with the same effect; it was as if he was playing with dynamic rays of force that I had a heightened sensitivity to. It happened once more, and my position was busted, as the coffee house players would say. I never won another game from Bobby, and I wonder if any other players have had this experience while opposing him.

Who said (or rather, wrote) it?