That long-drawn, wavering howl has, for all its fearful resonance, some inherent sadness in it, as if the beasts would love to be less beastly if only they knew how and never cease to mourn their own condition. There is a vast melancholy in the canticles of the wolves, melancholy infinite as the forest, endless as these long nights of winter and yet that ghastly sadness, that mourning for their own, irremediable appetites, can never move the heart for not one phrase in it hints at the possibility of redemption; grace could not come to the wolf from its own despair, only through some external mediator, so that, sometimes, the beast will look as if he half welcomes the knife that despatches him.
—Angela Carter, The Company Of Wolves
