A knowledge of tactics is the foundation of positional play. This is a rule which has stood its test in chess history and one which we cannot impress forcibly enough upon the young chess player. A beginner should avoid Queen's Gambit and French Defence and play open games instead! While he may not win as many games at first, he will in the long run be amply compensated by acquiring a thorough knowledge of the game
Richard RetiThe essential disadvantage of the isolated pawn ... lies not in the pawn itself, but in the square in front of the pawn.
Richard RetiThose chess lovers who ask me how many moves I usually calculate in advance, when making a combination, are always astonished when I reply, quite truthfully, 'as a rule not a single one'
Richard RetiWe perceive after a careful consideration of the evolution of the chess mind that such evolution has gone on, in general, in a way quite similar to that in which it goes on with the individual chess player, only with the latter more rapidly.
Richard Reti