With Stig Abell and Thea Lenarduzzi – Distinguished social psychologist Carol Tavris discusses whether we are seeing the end of definition by gender and whether there is any benefit in trying to track, physiologically and psychologically, the differences between men and women; Brian Dillon tackles the past, present and future of the essay form, via the indolent and melancholic work of Cyril Connolly, whose book The Unquiet Grave is "one of the strangest, funniest, most formally daring if badly flawed contributions to the literature of depression, disarray and the decay of ambition"; finally, the TLS's Religion Editor Rupert Shortt joins us to consider the true meaning of Islam, a religion so full of contradictions that – according to one critic – “very few Muslims consciously understand what being Islamic truly means”.