"The further you go in writing the more alone you are. Most of your best and oldest friends die. Others move away. You do not see them except rarely, but you write and have much the same contact with them as though you were together at the café in the old days. You exchange comic, sometimes cheerfully obscene and irresponsible letters, and it is almost as good as talking. But you are more alone because that is how you must work and the time to work is shorter all the time and if you waste it you feel you have committed a sin for which there is no forgiveness."