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The concept of law is a complex one, involving not only rules but also principles, policies, and standards.
你想要的每一样东西都在恐惧的另一边。
"The essence of mathematics is not to make simple things complicated, but to make complicated things simple."
创新不仅仅是技术的问题;它是关于改变思维方式并接受新的思考方式。