As a rule, so-called "positional" sacrifices are considered more difficult, and therefore more praise-worthy, than those which are based exclusively on an exact calculation of tactical possibilities.

For success I consider three factors are necessary: firstly, an awareness of my own strengths and weaknesses; secondly, an accurate understanding of my opponent's strengths and weaknesses; thirdly, a higher aim than momentary satisfaction. I see this aim as being scientific and artistic achievements, which place the game of chess on a par with other arts.

For my victory over Capablanca I am indebted primarily to my superiority in the field of psychology. Capablanca played, relying almost exclusively on his rich intuitive talent. But for the chess struggle nowadays one needs a subtle knowledge of human nature, an understanding of the opponent's psychology.

Play on both sides of the board is my favourite strategy.

Chess is a matter of vanity.

Oh! this opponent, this collaborator against his will, whose notion of Beauty always differs from yours and whose means (strength, imagination, technique) are often too limited to help you effectively! What torment, to have your thinking and your phantasy tied down by another person!

During a chess tournament a master must envisage himself as a cross between an ascetic monk and a beast of prey.