"Whatever I see can only be what there is to see. And I remember how the frog's eye tells the frog's brain, not even of all flies—let alone the surrounding manifold—but only of those in flight: catchable, fresh, eatable flies. What the frog's belly needs. And I, too, I must suppose, see no farther than my own necessities.

"And must, by the same token, need everything I see."

--Keith Waldrop 

"Characteristic Peices" 

(in Hegel's Family, 1989)