Happiness is mental harmony; unhappiness is mental Posted on December 18, 2017December 18, 2012 by admin “Happiness is mental harmony; unhappiness is mental inharmony.” — James Allen Author: James Allen Category: happiness Tags: happiness, James Allen Spread the love Related posts: A man is not rightly conditioned until Happiness never lays its finger on its Lovers who love truly do not write Happiness, or misery, is in the mind.