As a member of the Mandela cabinet, I was in awe of President Mandela, and how at his age he could work around the clock. Tata didn’t mind calling and following up on urgent matters late at night or early morning if that was necessary. You had to ask yourself, “If he is still awake late at night or up very early in the morning, who am I to be asleep? I have not been in prison for 27 years and I’m much younger. I’d better get my job done.” We need that work ethic now, writes Phumzile Mlambo-Ngcuka.