An expert is a man who has made all the mistakes, which can be made in a very narrow field.
专家是一个犯过所有错误的人，这些错误可以在一个非常狭窄的领域内犯。
标签
Experts
专家是一个犯过所有错误的人，这些错误可以在一个非常狭窄的领域内犯。