My human rights professor recommended this book, and she was absolutely right. It is that kind of a book that makes you change your way of thinking about things, whether you agree with the Berlin or not. It shows you how some people are gifter, or do enough effort to see what is beyond the obvious. I have spent some time reading and repeating few chapters in the book. It talks about Utupias in such a way that makes one rethink the immediate astonishment by their concept and see how even what is designed to be perfect has its many imperfections. It also discusses several other things like utalitarianism and other human behaviours. I must say that it is not the easiest reading on earth, it gave me a hard time understanding the complex meanings behind deep ideas and complicated language.
An excellent and understable book for all which are no professional philosophers or historicians but want to know. Doing easy the difficult is the most of the merit. Perhaps as with another books, some author's opinions and over all, sigths about the future are discusable, but I think is very good and rare to find such an intellectual authority.