Robinson, W. J. (1916). The moral standard of those who make use of or advocate the use of preventives. In W. J. Robinson, Fewer and better babies, or the limitation of offspring by the prevention of conception: The enormous benefits of the practice to the individual, society and the race pointed out and all objections answered (pp. 94-98). New York, NY, US: Race Betterment League.
http://dx.doi.org/10.1037/13039-017
I will admit that among the upper classes, and among a certain percentage of the middle classes, the decision to limit the number of children or to avoid having any at all, does not flow from very high motives, that this decision is even selfish, egotistic in the common sense of the term, that it flows from a desire on the part of the parents not to have their comfort or personal pleasures interfered with, that they do not want to have to go thru the trouble of bringing up children. But this accusation is distinctly untrue when applied to the vast majority of the middle, professional and working classes. Far from being due to a lower morality, it is due to higher morality. Far from being due to a lack of responsibility, it is due to a heightened sense of responsibility. (PsycINFO Database Record (c) 2016 APA, all rights reserved)