Abstract

Two perspectives dominate the general attempt to articulate the philosophical foundations of the animal liberation movement. On the one hand there is the utilitarian perspective typified by the work of Peter Singer. Here the morality of our treatment of nonhumans, and for that matter humans, is determined by an overarching concern to maximize a utility function. In Singer’s case this utility function is in some way composite. Singer urges the maximization of objective preference satisfaction and the maximization of pleasure. The scope of these norms is not arbitrarily limited. In the case of the first, all creatures who have preferences or desires are covered. The second includes all those creatures with the capacity to experience pleasure. The maximization of the utility function does not take into account species membership except instrumentally. Moreover it is merely of instrumental concern that this or that individual is treated in this or that way. The treatment of individuals is determined solely by reference to the utility function.