In modern times, the immortal longings of the mystics are expressed in a cult of incessant activity. Infinite progress... infinite tedium. What could be more dreary than the perfection of mankind? The idea of progress is only the longing for immortality given a techno-futurist twist. Sanity is not found here, nor in the moth-eaten eternities of the mystics. Other animals do not pine for a deathless life. They are already in it. Even a caged tiger passes its life half out of time. Humans cannot enter that never-ending moment. They can find a respite from time when - like Odysseus, who refused Calypso's offer of everlasting life on an enchanted island so he could return to his beloved home - they no longer dream of immortality.

As It Is: Turning Back (p. 198) - Straw Dogs: Thoughts on Humans and Other Animals (2002)