True scientific progress is achieved not by mere accumulation of facts, but by the continuous refinement of theories and models.

Policy debates should be grounded in rigorous empirical analysis.

我扮演的每一个角色都是我的一部分，我在每一个角色中都留下了一部分自己。

Education is the key to unlock the golden door of freedom.

How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving and tolerant of the weak and strong. Because someday in your life you will have been all of these.