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The only way to know if something is art is to see if it changes the way you think.
知道某物是否是艺术的唯一方法,是看它是否改变了你的思维方式。
Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.
The past is a foreign country; they do things differently there.
"The most powerful moments are those without words."