KELSEY PIPER: Forty-five years ago, Australian philosopher Peter Singer published the book Animal Liberation. The arguments it made — that animals can suffer; that it is morally wrong to inflict extraordinary suffering upon them; and that we consequently have to rethink our farming and food systems — are ones that many consumers today will have … Continue reading WHY (NOT) VEGAN?: What philosopher Peter Singer has learned in 45 years of advocating for animals