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I have learnt how to live... how to be in the world and of the world, and not just to stand aside and watch.
Sustainability is not an option; it's a necessity for the future of our planet.
最终,所有的故事都是关于爱与失去、希望与绝望、生与死。
购买股票的最佳时机是它们不受欢迎的时候。
To understand the arithmetic of algebraic varieties is to understand the symmetries hidden within them.