故事将我们从世界的冷漠中拯救出来。
"In observational studies, we often have to rely on assumptions that are not directly testable."
Freedom and order are not incompatible; truth is strength; free discussion is the very life of truth.
不偏不倚叫做中，不改变叫做庸。
"The most difficult thing is to make something simple."
Friends have all things in common.