I think that the World Champion should try to defend the quality of play more than anyone else.
Boris SpasskyThe shortcoming of hanging pawns is that they present a convenient target for attack. As the exchange of men proceeds, their potential strength lessens and during the endgame they turn out, as a rule, to be weak.
Boris SpasskyMy forte was the middlegame. I had a good feeling for the critical moments of the play. This undoubtedly compensated for my lack of opening preparation and, possibly, not altogether perfect play in the endgame. In my games things often did not reach the endgame!
Boris SpasskyThe best indicator of a Chess Player's form is his ability to sense the Climax of the game.
Boris Spassky