The philosophers of ancient Greece viewed it as demeaning, while Asian traditions venerated it. Protestantism cemented it as the foundational ethos of modern capitalism--though the Bible portrays it as both a glorification of God and a punishment. With this long history of mixed messages, it's no wonder many of us feel ambivalent about the activity that consumes most of our life's waking hours--in one loaded word, work . With interviews, case studies,...