“We think with our culture. That is, we rarely think from first principles, even first principles we ourselves sincerely endorse, but rather from sentiments instilled in us by our culture. Nowhere is this more obvious than in the case of humanity’s moral attitudes toward non-human animals. Even most utilitarians, who by their own ideals ought to consider the suffering of all beings important, are still in fact exceptionally anthropocentric in their attitudes. The insights of Darwin have not yet trickled fully into our moral consciousness, not even among those whose moral views demand it. Such is the heavy momentum of culture, which is reflected in every facet of modern politics and political thought. The anthropocentrism of most political philosophy is, to put it mildly, a massive failure.”