Show me three lines of the opening theory moves and I will prove to you that two of them are incorrect.
Emanuel LaskerBy what right does White, in an absolutely even position, such as after move one, when both sides have advanced 1. e4, sacrifice a pawn, whose recapture is quite uncertain, and open up his kingside to attack? And then follow up this policy by leaving the check of the black queen open? None whatever!
Emanuel LaskerThe laws of chess do not permit a free choice: you have to move whether you like it or not.
Emanuel LaskerEducation in Chess has to be an education in independent thinking and judging. Chess must not be memorized.
Emanuel Lasker