出自先秦《荀子·劝学》。定居一定要选择适当的邻里，交游一定要接近贤士。说明要加强道德修养，就应该注意周围环境。

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

I look for companies that are undervalued by the market.

最好的故事是为读者留出空间的故事。

诗歌这种东西，是天地的核心，是君子的内涵。

模糊集的概念为构建一个在许多方面与普通集框架平行的概念框架提供了一个方便的出发点。