My own early experiences in war led me to suspect the value of discipline, even in that sphere where it is so often regarded as the first essential for success.
Bio: Susan Cain is an American writer and lecturer, and author of the 2012 non-fiction book Quiet: The Power of Introverts in a World That Can't Stop Talking, which argues that modern Western culture misunderstands and undervalues the traits and capabilities of introverted people.