From Chekhov's Letters (5.30.1888)

   Her eldest daughter, a woman doctor--the pride of the whole family and "a saint" as the peasants call her--really is remarkable. She has a tumour on the brain, and in consequence of it she is totally blind, has epileptic fits and constant headaches. She knows what awaits her, and stoically with amazing coolness speaks of her approaching death. In the course of my medical practice I have grown used to seeing people who were soon going to die, and I have always felt strange when people whose death was at hand talked, smiled, or wept in my presence; but here, when I see on the verandah this blind woman who laughs, jokes, or hears my stories read to her, what begins to seem strange to me is not that she is dying, but that we do not feel our own death, and write stories as though we were never going to die.