To write about death is to write about that of which we have had little practical experience. We can write about conscious life, but we have no consciousness of the deaths we daily die.
 Samuel Butler, The Note-Books of Samuel Butler (1912). copy citation

Context

“If a man has sent his teeth and his hair and perhaps two or three limbs to the grave before him, the presumption should be that, as he knows nothing further of these when they have once left him, so will he know nothing of the rest of him when it too is dead. The whole may surely be argued from the parts.
iv
To write about death is to write about that of which we have had little practical experience. We can write about conscious life, but we have no consciousness of the deaths we daily die. Besides, we cannot eat our cake and have it. We cannot have tabulæ rasæ and tabulæ scriptæ at the same time. We cannot be at once dead enough to be reasonably registered as such, and alive enough to be able to tell people all about it.” source