<‘Once he had played his move, Rubinstein would leave the table and sit in a corner of the hall. When his opponent’s reply had been made, he came back unhurriedly to the board. The waste of time was evident, and Rubinstein, a very slow player, suffered from it frequently (it is known how many games he lost on time). One day I asked him why he did not remain at the board to await his opponent’s reply, which was sometimes imminent, and the explanation he gave me astounded me in the mouth of a professional master: “So as not to disturb my opponent; some players are not at ease when one watches them thinking.”’>