The grey area perplexes societal norms that dictate one can only be good and righteous or bad and anarchic. The grey is a bizarre; a Picasso art of both good and bad. So it’s no wonder morally grey ...

The Invention of Good and Evil: A World History of Morality. By Hanno Sauer. Translated by Jo Heinrich. Oxford University Press; 416 pages; $29.99. Profile; £25 Trial by boiling water was not as ...