Confucious said that real knowledge is knowing the extent of one's ignorance.Aristotle and Socrates said the same thing.Is it a skill that can be taught or learned? It probably can, if you have enough of a stake riding on the outcome...

煤炭的未来取决于我们能否使其更清洁、更高效。

天下人最能享受的是个“闲”字，但是闲适要从勤俭中得到。而天下最便宜的是个“勤”字，然而勤奋是从闲暇中做出。

有些时刻，身体如同语言般神圣；有些日子，骨骼就是语言。