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The world is a book, and those who do not travel read only one page.
The theory of computation provides a foundation for understanding what can and cannot be computed.
本当の友情は、困難な時にこそ試される。
The best leaders are those who listen, learn, and then lead.
The source of every crime, is some defect of the understanding; or some error in reasoning; or some sudden force of the passions.