Whenever society demands of a mother sacrifices to her child which go beyond reason, the mother, if she is not unusually saintly, will expect from her child compensations exceeding those she has a right to expect. The mother who is conventionally called self-sacrificing is, in a great majority of cases, exceptionally selfish towards her children, for, important as parenthood is an element in life, it is not satisfying if it is treated as the whole of life.
Source: The Conquest of Happiness, 1930, Chap.11:Zest
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