"to me there is a most melancholy side to it, when you touch upon what is fundamentally infinitely more important than any other question in this country - that is, the question of race suicide, complete or partial, which must follow from the attitude of our people as a whole toward wifehood, motherhood, and fatherhood .. the man or woman who deliberately avoids marriage and has a heart so cold as to know no passion and a brain so shallow and selfish as to dislike having children, is in effect a criminal against the race and should be an object of contemptuous abhorrence by all healthy people"
January 1, 1970
https://en.wikiquote.org/wiki/Theodore_Roosevelt