Below is the text of my Amazon review of John Searle’s “Mind”, an introduction to the philosophy of mind published in 2004. In this book Searle does a superb job of analyzing the structure of our mental processes, but he runs into problems trying to get a handle on free will and personal agency. Rather than comment on these two issues as a part of this review I have written an article on the subject located here.
Another good book from a good philosopher, Searle’s review and proposals concerning the philosophy of mind. He sets out reviewing the dominant threads in the development of philosophy of mind noting and striking at their particular weaknesses. Searle dismisses property and substance dualism but also strikes at the weaknesses of various branches of materialist thinking on the subject. He then proposes his own theory, one that is fundamentally materialistic (physics being for Searle the ultimate basis of all things), but different in that it takes mental properties seriously but rests them firmly on what amounts to “the power and functional purpose of brains”.
Searle is an honest philosopher. He states his assumptions, makes clear his reasoning, and knows when his approach to the subject hits a wall that he has not (perhaps yet) found a way round. In this book, like everyone else, he cannot reduce-away the gap between the objective ontology of brains and the subjective ontology of experience. He points out that while every other phenomena in the physical universe can be both logically and physically reduced to some more fundamental phenomena, subjective experience cannot be logically reduced precisely because it is subjective while everything else is objective, public. Of course he assumes that there is some underlying, solely physical, foundation which will become known in time.
The book covers consciousness taken as a whole, a gestalt, and also intentionality (the “about-ness” of our thinking), the aspectral nature of all consciousness, emotions, desires, beliefs, and with these also acts: decisions and volitional control of the body. There is also a chapter on the unconscious, and that too fits perfectly well into his view of what mind is.
Searle runs into two other barriers not normally acknowledged by other philosophers. In a chapter on [libertarian] free will, he says that from a psychological point of view, free will must be real, but from his own view that consciousness is just what the brain does in the same sense that kidneys filter blood, he admits that he cannot figure out how free will could work. He alludes to a popular view that quantum mechanics might have something to do with this, but is honest enough to admit that this idea still does not really answer the question.
The other barrier is that of personal identity, the conviction that although my body and character change I remain, to myself subjectively, the same person today as I was a month or a decade back and that I can plan for the future when, presumably, this same person will still be around to enjoy the fruits of present labor. Here he addresses the “continuity of memory” theory to personal identity and accepts that this is important but is insufficient to explain the phenomenon. That these are MY memories still presupposes some “I” whose memories they are. He denies the “I” is substantive, but merely a functional hypothesis that we must have to make experience intelligible. He admits that he does not know how to get deeper into it than that.
The book is well written (could Searle do otherwise?) with little formality. His assumptions and arguments are clearly made in plain English. It isn’t an encyclopedic introduction to the philosophy of mind, but it does touch briefly on the main threads of the field as explored by Western philosophers for the past 300 or so years. His own theory, well expounded, illustrates how subtle and problematic some of the questions in the field can be. A good read. Highly recommended.