Helen imagines herself standing in the supermarket aisle with a sign, red-faced and glaring at anyone who dares pick up a meat product. The police would come and escort her to the exit. Down at the station they would bring her tea and reassure her that eating meat is natural for humans. We’re built for it. But Helen would argue. Are not anger, jealousy, and lust natural by the very same logic? Is every action we’re built for morally justifiable?
