A man who becomes used to deluding himself, who fails to face his own faults with revolutionary honesty and even lies to himself, is the most likely to become a traitor, since lying is the beginning of treachery.
Hence vain deluding Joys, The brood of Folly without father bred!john milton
Deception, flattering, lying, deluding, talking behind the back, putting up a false front, living in borrowed splendor, wearing a mask, hiding behind convention, playing a role for others and for oneself in short, a continuous fluttering around the solitary flame of vanity is so much the rule and the law among men that there is almost nothing which is less comprehensible than how an honest and pure drive for truth could have arisen among them. They are deeply immersed in illusions and in dream images; their eyes merely glide over the surface of things and see "forms."friedrich nietzsche