无知是一切邪恶的根源和树干。
Actual great opportunities do not have “Great Opportunities” in the subject line.
历史既没有愿望也没有能力使人变得更好或更坏;它仅仅记录了他们曾经是什么以及他们做了什么。
The study of the mind must be strictly empirical.
The historian is both detective and storyteller.
The only thing we have to fear is fear itself.