Human beings have capitalized on the silence of animals, just as certain human beings have historically imposed silence on certain other human beings by denying slaves the right to literacy, denying women the right to own property, and denying both the right to vote.
Gary Steiner is an American moral philosopher, and the John Howard Harris Professor of Philosophy at Bucknell University. Steiner's particular focus is animal rights, Descartes, and 19th- and 20th-century continental philosophy.