The world is full of signs, but we have forgotten how to read them.
A 'performative' utterance is not true or false, but happy or unhappy.
Legal rights are not natural rights; they are created by law.
To innovate in computer science, one must first master the fundamentals.
不只是国家有染的问题,对士而言也有受到熏染的问题。 
无人机的核心不是飞得多高,而是用得多好。
The generic city is the city liberated from the captivity of center, from the straitjacket of identity.