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法律体系是根据其自身的有效性标准而有效的规则体系。
A legal system is a system of rules which are valid according to the system's own criteria of validity.
In mathematics, the journey to the solution is just as important as the solution itself.
"La ficción es la mentira que nos permite decir la verdad."
The interplay between randomness and structure is a central theme in both mathematics and computer science.
To live in the hearts we leave behind is not to die.