Tony Judt writes that our culture has become profoundly selfish and materialistic in the past 30 years -- and that this quality is not inherent in the human condition. "How should we begin to make amends for raising a generation obsessed with the pursuit of material wealth and indifferent to so much else? Perhaps we might start by reminding ourselves and our children that it wasn't always thus. ... There was a time when we ordered our lives differently."