The relation of the mother to the child will have in future to resemble more and more that which at present the father has, if women' s lives are to be freed from unnecessary slavery and children are to be allowed to profit by the scientific knowledge which is accumulating as to the care of their minds and bodies in early years.
Source: The Conquest of Happiness, 1930, Chap.11: Zest
More info.:
https://russell-j.com/beginner/HA24-100.HTM