"Two years into his term as the world's most prominent diplomat, Ban Ki-moon had yet to make much of an impression on the global stage. Some of this was just the nature of the job: Although the U.N. secretary-general presides over a budget of many billions of dollars, a sprawling bureaucracy, and a host of international agencies, his or her power is largely derivative, dependent on an ability to herd 193 countries toward something resembling a common direction. Ban's relatively low profile was also the result of his understated, methodical style-a paint-by-numbers approach to diplomacy that had undoubtedly served him well during his thirty-seven-year career in his native South Korea's foreign service and diplomatic corps but that stood in sharp contrast to the urbane charisma of his predecessor at the U.N., Kofi Annan. You didn't go into a meeting with Ban expecting to hear captivating stories, witty asides, or dazzling insights. He didn't ask how your family was doing or share details of his own life outside the job. Instead, after a vigorous handshake and repeated thank-yous for seeing him, Ban would dive headlong into a stream of talking points and factoids, delivered in fluent but heavily accented English and the earnest, formulaic jargon of a U.N. communiqué. Despite his lack of pizzazz, I would come to like and respect Ban. He was honest, straightforward, and irrepressibly positive, someone who on several occasions stood up to pressure from member states in pursuit of much-needed U.N. reforms and who instinctively came down on the right side of issues even if he didn't always have the capacity to move others to do the same. Ban was also persistent-especially on the topic of climate change, which he had designated as one of his top priorities."