Under no circumstances should you play fast if you have a winning position. Forget the clock, use all your time and make good moves.

In the Soviets' view, chess was not merely an art or a science or even a sport; it was what it had been invented to simulate: war.

Since your mental state can have such dramatic effects on your body, obviously your physical condition can affect your mental well-being. It follows that regular physical conditioning should be part of your overall chess training.

There is nothing wrong with trying to exploit the natural human tendency to become impatient when forced to play a boring position.

Errors have nothing to do with luck; they are caused by time pressure, discomfort or unfamiliarilty with a position, distractions, feelings of intimidation, nervous tension, overambition, excessive caution, and dozens of other psychological factors.

Patience is the most valuable trait of the endgame player. In the endgame, the most common errors, besides those resulting from ignorance of theory, are caused by either impatience, complacency, exhaustion, or all of the above.

According to such great attacking players as Bronstein and Tal, most combinations are inspired by the player's memories of earlier games.