"If words are to enter men's minds and bear fruit, they must be the right words shaped cunningly to pass men's defenses and explode silently and effectually within their minds."

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When you sit down to play a game you should think only about the position, but not about the opponent. Whether chess is regarded as a science, or an art, or a sport, all the same psychology bears no relation to it and only stands in the way of real chess.

— Jose Raul Capablanca