When a body is once in motion, it moveth, unless something else hinder it, eternally; and whatsoever hindreth it, cannot in an instant, but in time, and by degrees, quite extinguish it; and, as we see in the water, though the wind cease, the waves give not over rolling for a long time after: so also it happeneth in that motion, which is made in the internal parts of a man, then, when he sees, dreams, etc. For after the object is removed, or the eye shut, we still retain an image of the thing seen, though more obscure than when we see it. And this is it, the Latins call “imagination,” from the image made in seeing; and apply the same, though improperly, to all the other senses. But the Greeks call it “fancy”; which signifies “appearance,” and is as proper to one sense, as to another. “Imagination,” therefore, is nothing but “decaying sense”; and is found in men, and many other living creatures, as well sleeping, as waking.