The Buddhist doctrine of the good and the bad;
wholesome and unwholesome; pure and impure; their nature, causes, and effects.
Why is something or someone good or bad? What make it good or bad? What about
neutrality or mixture of the good or bad? Is there anything that could be
intrinsically good or bad? Consider the figure Devadatta! Is he personification
of the evil? Stories in the Jātaka is
full of good and bad people, good and bad deeds, good and bad heart? What would
be a good or bad thought and deed? What about the allegory of Maṭam Rudra?