The fear of death is instinctive because in so many past generations we have feared it. But how did we come to know what death is so that we should fear it? The answer is that we do not know what death is and that this is why we fear it.
 Samuel Butler, The Note-Books of Samuel Butler (1912). copy citation

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Author Samuel Butler
Source The Note-Books of Samuel Butler
Topic death fear
Date 1912
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/6173/6173-h/6173-h.htm

Context

“Pain consists not in that which is now endured but in the strong memory of something better that is still recent. And so, happiness lies in the memory of a recent worse and the expectation of a better that is to come soon.
Ignorance of Death i
The fear of death is instinctive because in so many past generations we have feared it. But how did we come to know what death is so that we should fear it? The answer is that we do not know what death is and that this is why we fear it.
ii
If a man know not life which he hath seen how shall he know death which he hath not seen?
iii
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.” source