The right to live does not connote the right of each man to reproduce his kind ... As we lessen the stringency of natural selection, and more and more of the weaklings and the unfit survive, we must increase the standard, mental and physical, of parentage.
Karl Pearson (1912). “Darwinism, Medical Progress and Eugenics: The Cavendish Lecture, 1912, an Address to the Medical Profession”
