If you are weak in the endgame, you must spend more time analysing studies; in your training games you must aim at transposing to endgames, which will help you to acquire the requisite experience.

Every great master will find it useful to have his own theory on the openings, which only he himself knows, a theory which is closely linked with plans for the middle game.

Yes, I have played a blitz game once. It was on a train, in 1929.

Above all else, before playing in competitions a player must have regard to his health, for if he is suffering from ill-health he cannot hope for success. In this connection the best of all tonics is 15 to 20 days in the fresh air, in the country.

If Tal would learn to program himself properly, then it would become quite impossible to play against him.

Along with my retirement from chess analytical work seems to have gone too.

I claim that nothing else is so effective in encouraging the growth of chess strength as such independent analysis, both of the games of the great players and your own.