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  • If suicide is allowed then everything is allowed. If anything is not allowed then suicide is not allowed. This throws a light on the nature of ethics, for suicide is, so to speak, the elementary sin. And when one investigates it it is like investigating mercury vapour in order to comprehend the nature of vapours.

    Ludwig Wittgenstein (1984). “Notebooks, 1914-1916”, p.91, University of Chicago Press