Good and evil.

Good and evil are interdependent concepts. They have no clear boundaries. For a terminally ill person who is fully conscious and in excruciating pain, is life or death good? A doctor who causes pain to a patient: is he doing good or evil? Everyone has their own assessment of good and evil. For me, it is normal not to do to others what you would not want done to yourself, plus the "Aniskin's rule": treat the arrogant with arrogance, and treat normal people normally. To each their own...