In Chapter 17 of 23 in his 2013 Capture Your Flag interview, author and public speaker Simon Sinek answers "What Role Have Accountability Partners Played in Helping You to Meet Deadlines and Goals?" Sinek shares that as social animals we feel greater responsibility toward each other than to ourselves. As a result, Sinek notes when someone besides us is invested in the outcome, we do our best not to disappoint. He shares how this concept of accountability partners functions in the context of having a workout buddy as well as in the context of the writer-publisher relationship. Simon Sinek teaches leaders and organizations how to inspire people. Sinek is the author of two books, "Leaders Eat Last: Why Some Teams Come Together and Others Don't" and "Start With Why: How Great Leaders Inspire Everyone to Take Action". He is a public speaker, an adjunct professor at Columbia University and a Brandeis University graduate.