Surely it will never, on the contrary, be suffered to degenerate from man to fiend?

相反，它肯定永远不会从人堕落为恶魔吗？

The poorness of the pasture had, in his opinion, occasioned the degradation of their cattle, which degenerated sensibly from me generation to another.

在他看来，贫瘠的牧场导致了他们家牛的退化，从我这一代到另一代，它们的退化明显。