This explanation of the psychology of ingratitude draws the veil from a series of remarkable phenomena which we pass by in our daily life without regard or understanding. We shall cite only a few instances from the many at our disposal: the ingratitude of servants and all subordinates,--a species of ingratitude that is so obvious that if an exception occurs the whole world proclaims it as an exception; the ingratitude of pupils to the teacher to whom they owe all (this explains the common phenomenon that pupils belittle the scientific attainments of the teacher,--a phenomenon that may almost be designated “the pupil’s neurosis”); the deep hatred with which artists regard those of their predecessors to whom they are most indebted; the tragedy of the distinguished sons whose fathers paved the way for them; the great injustice of invalids towards the physicians to whom they owe their lives; the historic ingratitude of nations to their great leaders and benefactors; the stubborn ignoring of the living great ones and the measureless overvaluation of the dead; the perpetual opposition to whatever administration may be in power, whence is derived a fragment of the psychology of discontent; the quite frequent transformation of a friendship into its opposite. Verily, one who counts upon gratitude is singularly deficient in knowledge both of human nature and of his own nature. In this connection, we must consider also the fact that owing to an excessive overvaluation of the performance of our most obvious duties, we demand gratitude even when there is no reason for expecting it. I refer to only one example: Is there not an obvious obligation on parents to provide to the best of their ability for the child that they have brought into the world? Notwithstanding this we daily preach to our children: “You must be grateful to us for all that we do for you, for your food, your clothes, your education.” And is it not a fact that this insistence upon the duty of children to be grateful begets the opposite: ingratitude? Should we not rather strive to hold our children with only one bond, _love_? Let us be just and also admit that really grateful human beings are to be found; persons whom life has not wearied and who lose none of their dignity though they are grateful. These are the spiritually pre-eminent individuals who have forced themselves to the recognition of the fact that no one is an independent unit, that our valuation of ourselves is false, individuals who have succeeded, by the aid of psychoanalytic self-knowledge, to reduce the normal person’s delusional greatness to the moderation warranted by reality.