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...

质量不是奢侈品；它是必需品。

安全环保是企业的生命线，任何时候都不能放松。

The multiverse is not a theory, but a prediction of certain theories.

Laughing is good for you if you don't kill yourself.

I'm interested in the idea of something being art because someone says it is.