永远不要低估小而持续的改进的力量，随着时间的推移，它们会带来巨大的成果。
Never underestimate the power of small, consistent improvements—they lead to big results over time.
The essence of life is statistical improbability on a colossal scale.
Success is not about how much money you make, but how many people you inspire.
The most important challenge facing the world today is the need to create strong, effective, and accountable states in the developing world.
处理一个不自由的世界的唯一方法是变得如此绝对自由，以至于你的存在本身就是一种反叛。