Worldweary

Once inside, he was both astounded and calmed by the fact that despite the random blasts of steam, the engine's whistles and all the echoing racket of humanity in transit, the dozens of dray horses lined up inside were munching their nosebags with worldweary nonchalance.

"The doctrine of eternal recurrence as a hammer in the hand of the most powerful …" poses the question: "Do you want this once more and innumerable times more …" as "a doctrine strong enough to have the effect of breeding: strengthening the strong, paralyzing and breaking the worldweary."