In The World and Us, Roberto Mangabeira Unger sets out to reinvent philosophy. His central theme is our transcendence - everything in our existence points beyond itself - and its relation to our finitude: everything that surrounds us, and we ourselves, are flawed and ephemeral. He asks how we can live so that we die only once, instead of dying many small deaths; how we can breathe new life and new meaning into the revolutionary movement that has aroused humanity for the last three centuries, but that is now weakened and disoriented; and how we can make sense of ourselves without claiming for...