Success is no proof of virtue. In the case of a book, quick acclaim is presumptive evidence of a lack of substance and originality.
Books
The Golden Rule is intolerable; if millions did to others whatever they wished others to do to them, few would be safe from molestation. The Golden Rule shows anything but moral genius, and the claim by which it is followed in the Sermon on the Mount - 'this is the Law and the Prophets' - makes little sense.
Morality, Christianity, Golden Rule