人类的选择性自愿失明使他们忽视了自己选择的道德后果。就任何特定人类群体的生存而言,它一直是该物种最有价值的特征之一。
(The selective voluntary blindness of human beings allows them to ignore the moral consequences of their choices. It has been one of the species' most valuable traits, in terms of the survival of any particular human community.)