The world is so large and so small at the same time.
世界如此之大,同时又如此之小。
The beauty of instrumental variables is that they allow us to see the world in a new light.
语言是存在的家。人在其中居住。
A philosophical problem has the form: "I don't know my way about."
La libertad es un hábito que se adquiere ejerciéndola.
"Innovation is the lifeblood of any successful business."