Mahatma Gandhi excelled in the art of heartivism. "In South Africa, Gandhi’s primary foe was General Jan Smuts, who imprisoned him for fairly long periods. During one of those stints in the jail, Gandhi went on to hand-make a pair of sandals for the General. A gift for his captor! Years later, after Gandhi had emerged as the victor, Jan Smuts would write him a note that still stands in a museum in South Africa, 'I have worn these sandals for many a summer, even though I may feel I am not worthy to stand in the shoes of so great a man. It was my fate to be the antagonist of a man for whom, even then, I had the highest respect.' Imagine a grueling civil rights struggle over decades, and your opponent declaring, What an honor to have you as my enemy, to lose to you!”