Peeping through my keyhold I see within the range of only about 30 percent of the light that comes from the sun; the rest is infrared and some little ultraviolet, perfectly apparent to many animals, but invisible to me. A nightmare network of ganglia, charged and firing without my knowledge, cuts and splices what I see, editing it for my brain. Donald E. Carr points out that the sense impressions of one-celled animals are not edited for the brian: 'This is philosophically interesting in a rather mournful way, since it means that only the simplest animals perceive the universe as it is.
Annie DillardHow we spend our days is, of course, how we spend our lives. What we do with this hour and with that one, is what we are doing.
Annie Dillard