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The role of the artist is to ask questions, not to give answers.
追求数学知识是一段永无止境的旅程;总有更多的东西等待发现和理解。
"We perceive not objects, but their utilities."
All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.
The most dangerous phrase in business is "We've always done it this way."