When the eyes sitting under someone’s forehead are looking directly ahead or looking up, they often think that what they see are humans.
Looking down, however, they often think that what they see are animals, beasts of burden.—Those without power or influence, drifting in the current of events and struggling for survival, the old, the weak, the sick, the crippled, for the most part belong to this category.
Looking at animals, a human thinks they also know what it is to be comfortable and well-fed, what it is to be warm or cold, but no more than that. So it’s all the same if they die. After all, the idiom only says that “human life is beyond value”; other lives don’t hinder the affairs of heaven.