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幸福不是在外面等着我们去寻找。它不在外面的原因是因为它在我们的内心。
Success is not final, failure is not fatal: It is the courage to continue that counts.
The essence of mathematics lies in its freedom.
Every magician has a different way of seeing the world, and that is what makes their magic unique.
Every mathematical problem has a solution; you just need to find the right perspective.
树种多样性不仅仅是生态学,它是我们地球肺部的风险管理。