" Killing was a relatively simple matter--a blow to the head, a knife to the throat--complicated only by how much one cared about the pain or terrors animals felt in dying.... The animal also died a second death. Severed from the form in which it had lived, severed from the act that had killed it, it vanished from human memory as one of nature's creatures. "

― William Cronon , Nature's Metropolis: Chicago and the Great West