Lincoln, Mandela and Obama: Lessons for Leaders Over Three Centuries
Arianna Huffington-07/03/2013

I'm happy to be back breathing the hot and muggy-though-wonderfully-sea-level air of New York, having just returned from the Aspen Ideas Festival. There were, as usual, many great speakers, but one of the speeches that became the talk of the festival was by Nancy Koehn, a professor at the Harvard Business School. Though she teaches at the business school, Koehn is actually an historian and the speech, titled "Crisis Leadership: Lessons for Here and Now," was about lessons we can learn about leadership from the experiences of Abraham Lincoln and the explorer Ernest Shackleton. (You can watch the whole thinghere.)