Because your average Joe didn't have a profession or specialized knowledge he was thought of as pretty ignorant.
但因为这种普通人既没有职业，也没有专业知识，就被认为是愚昧无知的。
It is quite necessary to read books of specialized area, which is mainly the preparation for the need of a profession in the future.
阅读专业书籍当然必要，但主要为了今后职业的需要。
Jargon: The specialized or technical language of a trade, profession, or similar group.
行话，一个行业、职业或类似的团体中使用的专业的或技术的语言。
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