What is it that separates human beings from the so called lower animals? Well as I see it, it's exactly one half dozen significant things: Humor, Imagination, Eroticism-as opposed to the mindless, instinctive mating of glow-worms or raccoons-Spirituality, Rebelliousness, and Aesthetics, an appreciation of beauty for its own sake. Now, since those are the features that define a human being, it follows that the extent to which someone is lacking in those qualities is the extent to which he or she is less than human. Capisce?

Fierce Invalids Home from Hot Climates (2000)