I don't think it logically follows that you should not kill anyone if you do not believe your own life to be precious. For example, someone in a truly blind ra

I don't think it logically follows that you should not kill anyone if you do not believe your own life to be precious. For example, someone in a truly blind rage might go ahead and recklessly kill someone with complete and total disregard for his own life. While observing this act we might say that he does not believe his life to be precious because he acts as if it's not, yet he can nevertheless still be fighting and killing someone because he's driven by dark emotions.