Good players develop a tactical instinct, a sense of what is possible or likely and what is not worth calculating.
Samuel ReshevskyChess sharpens the mind, stimulates concentration, improves the memory and promotes visualization.
Samuel ReshevskyBy playing slowly during the early phases of a game I am able to grasp the basic requirements of each position. Then, despite being in time pressure, I have no difficulty in finding the best continuation. Incidentally, it is an odd fact that more often than not it is my opponent who gets the jitters when I am compelled to make these hurried moves.
Samuel Reshevsky