Philosophy, like speaking prose, is something have to do all our lives, well or badly, whether we notice it or not. - Mary Midgley

"Cognition" cannot be "translated into circuitry." Learning and creativeness cannot be "defined as specific portions of the cognitive machinery." They cannot be because translating and defining are operations performed, not on the mean in any thinker's brain, but on language. Learning, knowing and so forth are words to describe the relation of a thinking subject (as a whole) to the things he thinks and talks about. Defining these words is clarifying their proper use, so as to get rid of whatever ambiguities and confusions dog them. Since these words describes functions of the whole thinking subject, they cannot be used to describe changes in "portions of the cognitive machinery" he uses to perform them. This would again be like saying that the carburetor had won the race, instead of the car of the driver. Carburators do not even know how to enter races, let alone win them. Winners need carburetors, and thinkers (including neurologists) need brain cells.

Creatures really have divergent and conflicting desires. Their distinct motives are not (usually) wishes for survival or for means-to-survival, but for various particular things to be done and obtained while surviving. And these can always conflict. Motivation is fundamentally plural. It must be so because, in evolution, all sorts of contingincies and needs arise, calling for all sorts of different responses. An obsessive creature, constantly dominated by one kind of motive, would not survive.

In fact, the whole idea of illusion seems to make sense only if we accept the reality of the illusory experience as an experience and question only what it seems to be telling us about the outside world. Optical illusions do really hapen. What they can’t do is provide accurate measurements of the outside world. The idea of having, so to speak, two successive layers of illusion here is unworkable.