The less gifted do not exist to serve the interests of the more gifted. The former are not mere things when compared to the latter, to be used as means to the latter's ends. From the moral point of view, each of us is equal because each of us is equally a somebody, not a something, the subject-of-a-life, not a life without a subject.

Ch. 3 - Empty Cages: Facing the Challenge of Animal Rights (2004)