The only clear thing is that we humans are the only species with the power to destroy the earth as we know it. The birds have no such power, nor do the insects, nor does any mammal. Yet if we have the capacity to destroy the earth, so, too, do we have the capacity to protect it.
Now came still evening on; and twilight gray Had in her sober livery all things clad: Silence accompanied; for beast and bird, They to they grassy couch, these to their nests, Were slunk, all but the wakeful nightingale.
Let sinful bachelors their woes deplore; full well they merit all they feel, and more: unaw by precepts, human or divine, like birds and beasts, promiscuously they join.