Ethically speaking, the trouble is that existence is a selfish thing.
Ethically, I am inclined to believe the religion of the Ainus is just as high as was that of the Incas.
Psychology will never tell us just what to do ethically, nor just how to do it.
Sense and consciousness can give us only what is, not what ethically ought to be.
Historically, scientifically, and ethically ...