“Optimism: The doctrine that everything is beautiful, including what is ugly, everything good, especially the bad, and everything right that is wrong. ... It is hereditary, but fortunately not contagious.”

Moral relativism is the ultimate immorality. Whether people admit it to themselves or not, there exists in this world good and evil, right and wrong, justice and injustice, and it doesn't depend on your viewpoint or interpretation. Some people are just flat out wrong and you shouldn't be shy in telling them so. I think that this doctrine, as Bierce calls it, is neither hereditary nor contagious, but is certainly a sign of self loathing and lack of critical thinking.

(-; hmm, OK ;-) 3 stars for the humor