政策辩论应以严格的实证分析为基础。
Policy debates should be grounded in rigorous empirical analysis.
"The past is never truly past; it lives in our stories and in our bones."
The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
当别人都不相信你时，你必须相信自己。