Psychologically, the choice of an appropriate opening is of the utmost importance for a player's success in a tournament.

Shall we ever live to see the following wise prohibition - the audience is forbidden to smoke and the masters are forbidden to 'smoke out' the audience by playing exchanging variations?

The tactician must know what to do whenever something needs doing; the strategist must know what to do when nothing needs doing

As for me, I am unfortunate enough not to posses a happy temperament like Najdorf, who views every happening in a rosy light and avoids any possibility of self-criticism. I am one of those unlucky skeptics who never overlook the dark side of even the happiest experience.

To avoid losing a piece, many a person has lost the game

Seize the outpost K5 with your knight, and you can go to sleep. Checkmate will come by itself.

Some part of a mistake is always correct