From Soldier of the Mist by Gene Wolfe:
If Ahuramazda exists, Highness, all things serve him. The oak is his; so is the mouse the gnaws its root. Without oaks there could be no mice, without mice no cats, and without cats no oaks. But shouldn’t he have servants greater than oaks and men? Surely he must, because the gap between Ahuramazda and men and oaks is very wide, and we see that every king has some minister whose authority’s only slightly less than his own, and that such men have ministers of their own, similarly empowered. Besides, the existence of the sun, the moon, the earth, and of fire and water are indisputable facts. But the existence of Ahuramazda is not an indisputable fact. Finish your wine.


