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The concept of legal validity is crucial for understanding the nature of law.

The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.

A story is not just told; it is lived by those who read it.

正是通過觀察和反思的力量，人們才能找到方法。所以我們必須不斷地挖掘和鉆研。