MOTHERS! Can you afford to have a large family? Do you want any more children? If not, why do you have them? DO NOT KILL, DO NOT TAKE LIFE, BUT PREVE… - Margaret Sanger

While it is necessary to point out the importance of "heredity" as a determining factor in human life, it is fatal to elevate it to the position of an absolute. As with environment, the concept of heredity derives its value and its meaning only in so far as it is embodied and made concrete in generations of living organisms. Environment and heredity are not antagonistic. Our problem is not that of "Nature vs. Nurture," but rather of Nature x Nurture, of heredity multiplied by environment, if we may express it thus. The Eugenist who overlooks the importance of environment as a determining factor in human life, is as short-sighted as the Socialist who neglects the biological nature of man. We cannot disentangle these two forces, except in theory. To the child in the womb, said Samuel Butler, the mother is "environment." She is, of course, likewise "heredity." The age-old discussion of "Nature vs. Nurture" has been threshed out time after time, usually fruitlessly, because of a failure to recognize the indivisibility of these biological factors. The opposition or antagonism between them is an artificial and academic one, having no basis in the living organism.

The main objects of the Population Congress would be:</br>a) to raise the level and increase the general intelligence of population.</br>b) to increase the population slowly by keeping the birth rate at its present level of fifteen per thousand, decreasing the death rate below its present mark of 11 per thousand.</br>c) to keep the doors of immigration closed to the entrance of certain aliens whose condition is known to be detrimental to the stamina of the race, such as feebleminded, idiots, morons, insane, syphilitic, epileptic, criminal, professional prostitutes, and others in this class barred by the immigration laws of 1924.</br>d) to apply a stern and rigid policy of sterilization and segregation to that grade of population whose progeny is tainted, or whose inheritance is such that objectionable traits may be transmitted to offspring.</br>e) to insure the country against future burdens of maintenance for numerous offspring as may be born of feebleminded parents, by pensioning all persons with transmissible disease who voluntarily consent to sterilization.</br>f) to give certain dysgenic groups in our population their choice of segregation or sterilization.

Let us not confuse the sexual impulse with love, for it alone is not love, but merely a necessary quality for the growth of love.