Robert Nozick was both the most innovative and imaginative of 20th Century philosophers and his early death is a huge loss. What was remarkable about Nozick was his breadth and the ambition of his thought. Moreover, he usually succeeded in making a serious contribution the areas he turned his mind to.
This best part of this book is that it offers a significant contribution to the debate on relativism and absolutism. Indeed social constructionists will have serious difficulty in rebutting Nozick's arguments. Parts of this book are difficult, particularly for those without a scientific background. However, making the effort pays off with some wonderful insights on relativism, the nature of objective knowledge and the place of ethics.