The best stories come from the heart.

解释：人的命运是天注定的，人不能去改变。

摆脱诱惑的唯一方法就是屈服于它。

The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.

可持续性不是一种选择，而是我们行业未来的必需品。

工具变量的美妙之处在于它们让我们以新的视角看世界。