In the language of nature death means annihilation. And that death is a serious matter may be concluded from the fact that, as every one knows, life is no joke. We must indeed deserve nothing better than these two.
 Arthur Schopenhauer, The World as Will and Representation (1819). copy citation

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Author Arthur Schopenhauer
Source The World as Will and Representation
Topic death joke
Date 1819
Language English
Reference
Note Translated by R. B. Haldane and J. Kemp
Weblink http://www.gutenberg.org/files/40868/40868-h/40868-h.html

Context

“Opinions change with time and place; but the voice of nature remains always and everywhere the same, and is therefore to be heeded before everything else. Now here it seems distinctly to say that death is a great evil. In the language of nature death means annihilation. And that death is a serious matter may be concluded from the fact that, as every one knows, life is no joke. We must indeed deserve nothing better than these two. In fact, the fear of death is independent of all knowledge; for the brute has it, although it does not know death. Everything that is born brings it with it into the world. But this fear of death is a priori only the reverse side of the will to live, which indeed we all are.” source