卡塞尔文献展必须始终是一个问题，而不是一个答案。
The documenta must always remain a question, never an answer.
The core of the energy revolution is cleanliness and efficiency, and the coal industry must actively adapt to this trend.
We try to buy stocks that are undervalued, and then we wait for the market to recognize their value.
我们试图买入被低估的股票，然后等待市场认识到它们的价值。
【释义】不得志的时候就要提高自己的道德修养，得志的时候就要努力让天下人都能得到好处。
