Anthropocentrism
Anthropocentric (Greek anthropos: human being) approaches can often be traced back to the Kantian tradition and Kant's ethics of autonomy. Due to their capacity to reason, human beings possess unconditional value: they are ends in themselves. Hence, every human being must respect his own value and that of other human beings, and has obligations to other human beings.
Rae, G. (2014): Anthropocentrism. In: ten Have, H. (ed.): Encyclopedia of Global Bioethics. Cham: Springer. doi: 10.1007/978-3-319-05544-2_24-1. Online Version
Singer, P. (1979): Practical Ethics. Cambridge: Cambridge University Press.
Singer, P. (1975): Animal Liberation: A New Ethics for Our Treatment of Animals. New York: HarperCollins.
Kant, I. (1996): The Metaphysics of Morals [1797]. Transl. by M. J. Gregor. Cambridge: Cambridge University Press.