We must dare to dream, dare to practice, dare to fail, and dare to succeed.

Natural experiments are a powerful tool for understanding causal relationships in the real world.

建筑师最强大的工具是橡皮擦。

Happiness is the key to life. Without happiness, you have nothing.

我扮演的每个角色都是我的一部分，我把一部分自己献给每个角色。