This thoughtful book argues that skepticism - the view that reliable knowledge is beyond our grasp - is unavoidable unless knowledge is thought of not as merely an intellectual matter but as crucial to practical activity and emotional life. Author Anthony Rudd ties this idea to the work of Wittgenstein and Heidegger, exploring important similarities between the former's reminders of the "expressive" character of human experience and the latter's account of ways to experience the physical world "expressively."