Hypocrisy is the contrivance of a false appearance of virtue or goodness, while concealing real character or inclinations, especially with respect to religious and moral beliefs; hence, in a general sense, hypocrisy may involve dissimulation, pretense, or a sham. Hypocrisy is the practice of engaging in the same behavior or activity for which one criticizes another. In moral psychology, it is the failure to follow one's own expressed moral rules and principles. According to British political philosopher David Runciman, "Other kinds of hypocritical deception include claims to knowledge that one lacks, claims to a consistency that one cannot sustain, claims to a loyalty that one does not possess, claims to an identity that one does not hold"
Jung went on:
In New Paths in Psychology (1916) Jung pointedly referred to the "hypocritical pretenses of man". Dream-analysis above all else mercilessly uncovers the lying morality and hypocritical pretences of man, showing him, for once, the other side of his character in the most vivid light  Jung omitted this characterization from his later essay On the Psychology of the Unconscious (1943), which developed out of the former.
"So convenient a thing is it to be a reasonable creature, since it enables one to find or make a reason for everything one has a mind to do." Benjamin Franklin's observation has been confirmed by recent studies in self-deception. In everyday reasoning, humans do little to get real evidence when taking positions or making decisions, and do even less to get evidence for opposing positions. Instead, they tend to fabricate "pseudo-evidence" – often after the decision had already been made ("post hoc fabrication").
Humans take a position, look for evidence that supports it, then, if they find some evidence – enough so that the position "makes sense" – they stop thinking altogether (the "makes-sense stopping rule"). And, when pressed to produce real evidence, they tend to seek and interpret "evidence" that confirms what they already believe (the "confirmation bias").
Moreover, humans tend to think highly of themselves, highlighting strengths and achievements, and overlooking weakness and failures (the "self-serving bias"). When asked to rate themselves on virtues, skills, or other desirable traits (including ethics, intelligence, driving ability, and sexual skills), a large majority say they are above average. Power and privilege magnify the distortion: 94% of college professors think that they do above average work. This effect is weaker in Asian countries and in other cultures which value the group more highly than the self.