I just think that describing our ethical system as "artificial" is a tremendous misapplication of the term, and I think it would give most people evaluating your statement pause.
On the other hand, I do find my aversion to killing rather natural in the sense that I needn't justify too much beyond my own instinct (and, if you should know, ethics as instinct is the subject of research with promising theories[1], but I'm not even talking about that).
On the other hand, I do find my aversion to killing rather natural in the sense that I needn't justify too much beyond my own instinct (and, if you should know, ethics as instinct is the subject of research with promising theories[1], but I'm not even talking about that).
[1] http://en.wikipedia.org/wiki/Trolley_problem