Advancing age prevented R. Shimeon b. Halafta from continuing his regular visits to Rabbi. When asked the reason he replied: — “The distant has become near and the near has become distant and two turned into three.” By this he meant: his sight had weakened so that he could no longer see far, his hearing had weakened so that he could only hear things near, while he had to use a stick to help his legs.
Rabbi Shimon ben Halafta's Riddle of Old Age
Gaster, Exempla of the Rabbis No. 145; Shabbat 152a