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Freeing yourself was one thing, claiming ownership of that freed self was another.
The true test of a mathematical idea is its ability to inspire further questions.
The ocean is the cradle of life and the hope for humanity's future. We must cherish her like our mother.
闹市是赚钱的地方,安静的地方才能休养身体。
节制欲念,修养身心,安贫乐道,摒除机巧,都是驱逐病魔的良方。