In these circumstances conscientious mothers ask too little of their children, and unconscientious mothers ask too much. Conscientious mothers restrain their natural affection and become shy; unconscientious mothers seek in their children a compensation for the joys that they have had to forgo. In the one case the child's affections are starved, in the other they are over-stimulated. In neither case is there any of that simple and natural happiness that the family at its best can provide.
Source: The Conquest of Happiness, 1930, Chap.11:Zest
More info.:
https://russell-j.com/beginner/HA24-040.HTM
#Bertrand_Russell