 MacIntyre considered the book an important, well-written, and rewarding discussion of the central problems of philosophy, writing that it "communicates its author's own excitement about both the problems and his solutions".MacIntyre credited Nozick with showing "striking and imaginative originality" by proposing that philosophy should replace the ideal of proof with "the notion of explanation", vindicating the importance of technical discussions in the philosophy of language and the philosophy of mind with "the uses he finds for their conceptual end products", and indirectly showing "how Continental philosophers who have been explicitly concerned with human value and significance have too often presented us with impoverished and barren discussions on these great issues because they have neglected the more technical discussions of Anglo-American analytic philosophy.