写作的行为是一种乐观的行为。如果你觉得它不重要，你就不会费心去做。
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
I don't compete with anyone but myself. My goal is to be better than I was yesterday.
经济的历史在很大程度上是一个制度演化的故事。
I think it's important to take risks and not be afraid of failure.
大国政治的悲剧在于，即使是善意的国家也被迫采取可能导致冲突和战争的行为。
永远不要低估一个拥有共同进步愿景的团队的力量。