"Matching methods can be a powerful tool when randomization is not possible."

你是一个不知道自己想要什么的人，直到你把它写在纸上。

Innovation comes from challenging the status quo and being willing to take risks.

如果你不愿意适应变化，你就没有准备好领导。

All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.

International politics is a ruthless and dangerous business, and it is foolish to expect states to behave according to moral principles.