The celebrated South African artist and animator William Kentridge describes how failure is an intrinsic part of what he strives for.
Dutch philosopher Alex Voorhoeve explains how human psychology may get in the way of moral clarity.
And the flaws of online communications – is social networking undermining our ability to make real friends? Or is that just a myth? –American Professor Nancy Baym explores the question of authenticity in communication.
Illustration by Graeme Davis.