It only takes twenty generations of selective breeding to create large differences or appearance and behavior in other mammals. — Jonathan Haidt Copy Share Image
Gradually, by selective breeding, the congenital differences between rulers and ruled will increase until they become almost different species. A revolt of… — Bertrand Russell Copy Share Image
“In addition to selecting for infantile physical features in many of our pet breeds, we have carefully cultivated an infant-like dependency in… — Charles Danten Copy Share Image
We have no ethical obligation to preserve the different breeds of livestock produced through selective breeding One generation and out. We have… — Wayne Pacelle Copy Share Image
Eugenics, which had started long before my time, had once been defined as including free love and prevention of conception... Recently it… — Margaret Sanger Copy Share Image
