Bestselling author Simon Blackburn tackles the key questions in philosophy–and provides easy-to-understand and enlightening answers. In Big Questions: Philosophy, bestselling author Simon Blackburn addresses the 20 essential questions: What is the meaning of life? Am I free? Why is there something and not nothing? What do we really know? Is there such a thing as society? Can machines think? What is time? How can I deceive myself? Why be good? What fills up space? Can we truly understand each other? Why do things keep on keeping on? Are we rational? What am I? What are my rights? Is truth relative? Do we need God? What is human nature? What is beauty? Is death to be feared?