I hate to repeat myself but let me ease your mind.
Ha ha ha. I find it amusing that you should ask me of all people about this.
Only I can live forever. - is a powerful ethical argument if there is a slim but realistic chance of you actually achieving this.
...or perhaps just the raw materials for another horcrux.
Despite the risk of cluttering I even made a posts who's only function was to clear up ambiguity:
Ah, even muggles can be sensible occasionally.
I thought it was more than probable the vast majority of readers here would be familiar with me. Perhaps I expect too much of them. I do that sometimes expect too much of people, it is arguably one of my great flaws.
From Mike Darwn's Chronopause, an essay titled "Would You Like Another Plate of This?", discussing people's attitudes to life:
Conclusion, graphs, and references in article. As usual, I recommend reading Chronopause.com as Darwin has many good articles; to quickly link a few: