"Light is the language of painting, shadows are its punctuation."

The old believe everything; the middle-aged suspect everything; the young know everything.

Every nation shares the responsibility to protect our oceans, regardless of their coastline size.

Poetry should surprise by a fine excess and not by singularity—it should strike the reader as a wording of his own highest thoughts, and appear almost a remembrance.

做数学就是同时参与创造和发现的行为。