All entities move and nothing remains still.
Everything is in flux.
Dogs, also, bark at what they do not know.
It is by disease that health is pleasant; by evil that good is pleasant; by hunger, satiety; by weariness, rest.
No man ever steps in the same river twice, for it's not the same river and he's not the same man.
Many who have learned from Hesiod the countless names of gods and monsters never understand that night and day are one