If a person is unconscious and doesn't realize that they are being killed, is it okay to kill them? The answer is an obvious "no", so I realized that the net result of killing a zygote and killing a grown adult is the same: One person has been murdered.

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"I am a Tory Anarchist. I should like every one to go about doing just as he pleased- short of altering any of the things to which I have grown accustomed." (Max Beerbohm)