Chess is the art which expresses the science of logic.
If you are weak in the endgame, you must spend more time analysing studies; in your training games you must aim at transposing to endgames, which will help you to acquire the requisite experience.
Chess is the art of analysis.
Chess cannot be taught. Chess can only be learned.
If Tal sacrifices a piece, take it. If Petrosian sacrifices a piece, don’t take it.
Before Geller we did not understand the King’s Indian Defence.
In short, we can see Karpov as an exploiter of other people’s ideas. His ability to use these ideas is not at issue, but he himself is about as fertile as a woman who has been sterilized is.
When my opponent’s clock is going I discuss general considerations in an internal dialogue with myself. When my own clock is going I analyse conctrete variations.
With opposite coloured bishops the attacking side has in effect an extra piece in the shape of his bishop.
Chess is a part of culture and if a culture is declining then Chess too will decline.
I claim that nothing else is so effective in encouraging the growth of chess strength as such independent analysis, both of the games of the great players and your own.
Every great master will find it useful to have his own theory on the openings, which only he himself knows, a theory which is closely linked with plans for the middle game.
Above all else, before playing in competitions a player must have regard to his health, for if he is suffering from ill-health he cannot hope for success. In this connection the best of all tonics is 15 to 20 days in the fresh air, in the country.