Many feel Francis has gone beyond his remit in taking a radical political stance

The influential moral philosopher Alasdair MacIntyre has long stood outside the mainstream. Has the financial crisis finally vindicated his critique of global capitalism?

A new assault by a leading psychologist on Prozac-style antidepressants claims they are worse than useless. Try telling that to the many people who believe they are life-saving

The biologist talks about God, Darwin and the end of evolution with John Cornwell

Steven Pinker has a good stab at explaining metaphor, but his belief that brains work like computers proves a big limitation. We still need poets to understand the imagination