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INTRODUCTION Although the writings of Thomas Reid are very fertile and interesting, his life is biographically barren in comparison to such seventeenth - and ...

Thomas Reid thought of himself as a critic of the representative theory of perception, of what he called the ‘theory of ideas’ or ‘the ideal theory’.2 He had no kind words for that theory: “The theory of ideas, like the Trojan horse, had a specious appearance both of innocence and beauty; but if those philosophers had known that it carried in its belly death and destruction to all science and common sense, they would not have broken down their walls to give it admittance.”3 Many have supposed that his opposition to the representative theory was grounded in his direct realism.4 A direct realist theory of perception holds that perception of external objects is not mediated by any mental entity whose intrinsic character licenses a move from the mental entity to the external object presented in perception. Reid himself, in an oration of 1759, delivered at graduation ceremonies over which he presided as regent and professor of philosophy at King’s College in Aberdeen, said that he did not “understand what need there is of an intermediate object for thought about something to be possible.”5 Hence, if Reid was not a direct realist, philosophers and historians would have to ask whether and to what degree Reid was what he thought himself to be.

The two great philosophical figures at the culminating point of the Enlightenment are Thomas Reid in Scotland and Immanuel Kant in Germany. Reid was by far the most influential across Europe and the United States well into the nineteenth century. Since that time his fame and influence have been eclipsed by his German contemporary. This important book by one of today's leading philosophers of knowledge and religion will do much to reestablish the significance of Reid for philosophy today. Nicholas Wolterstorff has produced the first systematic account of Reid's epistemology. Relating Reid's philosophy to present-day epistemological discussions, the author demonstrates how they are at once remarkably timely, relevant, and provocative. There is no other book that both uncovers the deep pattern of Reid's thought and relates it to contemporary philosophical debate.

In the chapter “The Geometry of Visibles” in his ‘Inquiry into the Human Mind’, Thomas Reid constructs a special space, develops a special geometry for that space, and offers a natural model for this geometry. In doing so, Reid “discovers” non-Euclidean Geometry sixty years before the mathematicians. This paper examines this “discovery” and the philosophical motivations underlying it. By reviewing Reid’s ideas on visible space and confronting him with Kant and Berkeley, I hope, moreover, to resolve an alleged impasse in Reid’s philosophy concerning the contradictory characteristics of Reid’s tangible and visible space.

I suggest a possible rehabilitation of Reid's philosophy of mind by a constructive use of Kant's criticisms of the common sense tradition. Kant offers two criticisms, explicitly claiming that common sense philosophy is ill directed methodologically, and implicitly rejecting Reid's view that there is direct epistemological access by introspection to the ontology of mind. Putting the two views together reveals a tension between epistemology and ontology, but the problem which Kant finds in Reid also infects his own system, as his weaker ontological claims are undermined to such an extent by the necessary reintroduction of self-consciousness that the justification he seeks for reason fails to be reached epistemologically. Plausible solutions to these parallel tensions imply that both Reid and Kant have a pre-systematic concept of mind, and may lead to the conclusion that Reid's method is more economical in the elaboration of an ontology for the philosophy of mind.

Thomas Reid has a theory of consciousness that is central to his philosophy of mind but which raises a regress problem. I have two tasks in this paper. The first is to give an account of Reid's views on consciousness and the avoidance of the regress based on textual analysis. The second is to expand the theory of consciousness Reid gives to offer a deeper explanation of how the regress is avoided that is based on Reid's philosophy of mind but goes beyond any text from Reid that I know. The distinction is important. Philosophers are inclined to attribute to a philosopher views that they have invented by studying the philosopher. Both textual analysis and invention based on a philosopher's writings are legitimate uses of the history of philosophy. When they are confused, however, arguments about what the philosopher held generate confusion. If you invent something from his or her philosophy, even something implied by it, that is your philosophy, not the philosopher's. The distinction is important for avoiding useless disputes. This first part of my paper is an attempt to remain true to the texts of Reid. The second part goes beyond the text, though it is what I extrapolate from Reid.

Thomas Reid's distinction between original and acquired perception is not merely metaphysical; it has psychological and phenomenological stories to tell. Psychologically, acquired perception provides increased sensitivity to features in the environment. Phenomenologically, Reid's theory resists the notion that original perception is exhaustive of perceptual experience. James Van Cleve has argued that most cases of acquired perception do not count as perception and so do not pose a threat to Reid's direct realism. I argue that acquired perception is genuine perception and as direct as original perception. Perception is grounded in a productive and developing relationship between the mind and world.

: Some critics find that Thomas Reid thinks the mind especially problematic, "hid in impenetrable darkness". I disagree. Reid does not hold that mind, more than body, resists explanation by the new science. The physical sciences have made great progress because they were transformed by the Newtonian revolution, and the key transformation was to stop looking for causes. Reid's harsh words are a call for methodological reform, consonant with his lifelong pursuit of a science of mind and also with his frequent (though overlooked) optimism about such a science.

Reid's theory of perception has long been cited as a paradigmatic example of direct realism; and the term “direct” undoubtedly carries the connotation that external objects are items in “the manifold of intuition.” There are important ways in which perception, on Reid's analysis, undoubtedly is immediate and direct. Nonetheless, this paper contends that, with the exception of his account of our perception of visible fi gure, Reid's theory is not an example of direct realism, if a condition of a theory of percep- tion's being a direct realist theory is that it hold that perception yields acquaintance with external objects, so that those objects are present to consciousness. The defense given in Thomas Reid and the Story of Epistemology of the no-acquaintance interpretation of Reid's theory occurred in the context of a comprehensive account of Reid's theory of perception, and was accordingly brief. This essay places that interpretation in the center of attention so as to offer a more adequate defense, developing somewhat more fully the arguments briefly presented in the book, and adding some additional considerations.

Thomas Reid claims to share Locke's view that consciousness is a kind of inner sense. This is puzzling, given the role the inner-sense theory plays in indirect realism and in the theory of ideas generally. I argue that Reid does not in fact hold an inner-sense theory of consciousness and that his view differs importantly from contemporary higher-order theories of consciousness. For Reid, consciousness is a first-order representational process in which a mental state with a particular content suggests the application of recognitional concepts in forming beliefs or judgements to the effect that one is currently undergoing a state with that content. I take up the question of whether Reid's theory leads to a regress, and I argue that while the regress cannot be eliminated, it is mitigated by the non-hierarchical nature of Reid's theory of mind.