所有事情都是可能的，直到它们被证明是不可能的，即使不可能的事情也可能只是如此，到目前为止。
All things are possible until they are proved impossible and even the impossible may only be so, as of now.
真正的诗篇不是用墨水而是用鲜血写就的。
Economics is at its best when it helps us solve real-world problems in a rigorous and transparent way.
The act of writing is an act of defiance.
成功的道路永远在建设中。