By 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 range of circumstances in which it is possible to presuppose the presence of a combination is very limited. The presence of such circumstances is the reason for the genesis of the idea in the master's brain.
Emanuel LaskerBy positional play a master tries to prove and exploit true values, whereas by combinations he seeks to refute false values ... A combination produces an unexpected re-assessment of values.
Emanuel LaskerThe combination player thinks forward; he starts from the given position, and tries the forceful moves in his mind
Emanuel Lasker