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并不存在一个自由美国和一个保守美国的区别 - 只有团结的美利坚合众国。
The greatest tragedy of humanity is not death, but the loss of dignity.
The ethical issues of AI must be considered simultaneously with technological development.
追求卓越是一段旅程,而不是终点。
We have a responsibility to future generations to leave the planet in better shape than we found it.
一个好老师必须能够设身处地为那些觉得学习困难的人着想。
世界称之为不道德的书籍,是那些揭示了世界自身羞耻的书籍。