The essential disadvantage of the isolated pawn ... lies not in the pawn itself, but in the square in front of the pawn.
Richard RetiThe majority of people imagine a chess master as being a townsman who passes his life in an atmosphere of smoke and play in cafes and clubs: a neurasthenic individual, whose nerves and brains are continually working at tension: a one-sided person who has given up his whole soul to chess.
Richard Reti