政策规则优于自由裁量，因为它们消除了时间不一致性问题。

Tragedy is when I cut my finger. Comedy is when you walk into an open sewer and die.

Truth is so hard to tell， it sometimes needs fiction to make it plausible.

War is what happens when language fails.

Innovation is the lifeblood of the petroleum and chemical industry. Only by continuous technological breakthroughs can we achieve sustainable development.

当下总是不稳定的所在，过去才是你锚定自我的地方。