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The only way to have a friend is to be one.
获得朋友的唯一方法就是先成为朋友。
The truth is rarely pure and never simple.
We must balance energy development with environmental protection to achieve sustainable growth.
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
The family is the nucleus of civilization.
The best way to predict the future is to create it.
The very existence of libraries affords the best evidence that we may yet have hope for the future of man.