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...
最好的学习方式就是从错误中吸取教训。
作家就是那种花上数年耐心地试图发现自己内心第二个存在的人,以及那个造就了他的世界。