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我们写的每一个方程都是宇宙的一首诗,是存在伟大史诗中的一节。
生活就是一种艺术,而我们每个人都是自己生命的艺术家。
The soul that has conceived one wickedness can nurse no good thereafter.
The power of accurate observation is commonly called cynicism by those who have not got it.