The beauty of instrumental variables is that they allow us to see the world in a new light.

The universe is not only stranger than we imagine, it is stranger than we can imagine.

"To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment."

天文学中的精确测量为理解宇宙打开了新的窗口。

教育的根是苦的，但果实是甜的。

长期成功的关键在于平衡短期表现和可持续增长。