畜牲本是人来做，
人畜轮回古到今。
若不披毛并戴角，
劝君休使畜性心。
– 普庵禅师
Livestock [animals] originally were humans, [who have] become [them, as] humans and animals [are] reborn [as one another and other beings from] ancient [times] till [the] present. If not [wishing to] wear fur and carry horns, [I] urge you [to] cause [the] ending [of your] animalistic nature’s [greedy, hateful and deluded] mind.
– Chán Master Pǔ’ān
