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...
The truth is not something we find, but something we create.
你围绕你所恐惧的事物建立生活，然后你的一生都在恐惧中度过。