学习不是试错的问题，而是洞察力的问题。
Learning is not a matter of trial and error, but of insight.
States are rational actors, and they will always act in their own self-interest.
I don't think you can ever be too prepared.
宏观经济政策的目标应该是稳定经济，而不是微调经济。
True leadership means making tough decisions today for a better tomorrow.
人类的增长速度往往超过其生存手段的增长速度。