David Goodhart argues that earlier eras have much to teach us about group solidarity.

He explores the changes that have led to our post-industrial disenchantment.

"We cannot and do not want to go back to a past when social horizons and life chances were far more limited", he writes, "but a recognition of some of the merits of earlier eras might help us to see more clearly the pathologies of today's achievement society".

Producer: Adele Armstrong