Abstract

In the previous chapter I gave reasons for believing that the fundamental principle of equality, on which the equality of all human beings rests, is the principle of equal consideration of interests. Only a basic moral principle of this kind can allow us to defend a form of equality which embraces all human beings, with all the differences that exist between them. I shall now contend that while this principle does provide an adequate basis for human equality, it provides a basis which cannot be limited to humans. In other words I shall suggest that, having accepted the principle of equality as a sound moral basis for relations with others of our own species, we are also committed to accepting it as a sound moral basis for relations with those outside our own species - the nonhuman animals.