" In order to prevent a violation of the principle of nonmaleficence, every human being must be valued at the highest level of development, because attaching value to any lower level of development risks the possibility of undervaluing that human being (i.e., subjecting him to the classification of being "inferior" or "less than human"). This undervaluation, in turn, allows for a serious violation of the principle of nonmaleficence, that is, justifying killing, slavery, marginalization, isolation, etc., of this human being because the human being is thought to be "inferior" or "less than human. "

― Robert J. Spitzer , Ten Universal Principles: A Brief Philosophy of the Life Issues