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I believe in the discipline of mastering the best that other people have ever figured out.
A verdadeira revolução é a que transforma o coração do homem.
一个好故事是那种在你读完很久之后仍然留在你心中的故事。
你不能没有一个对世界的概念而活,但也不可能带着你对世界的概念而活。
Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.