自由是不可分割的,只要一人被奴役,所有的人都不自由。
——1963年6月25日在西德市政厅柏林墙前的演说
The pace of change demands that we unlearn as much as we learn.
In the ocean of science, everyone is a student, there is always something new to learn.
你必须对你所做的事情充满热情。
The study of economics is ultimately the study of human behavior and its consequences.