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一个好的数学家是能看到定理之间类比的人;一个伟大的数学家是能看到类比之间的类比的人。
A good mathematician is someone who can see analogies between theorems; a great mathematician is someone who can see analogies between analogies.
"Sometimes you have to be apart from people you love, but that doesn't make you love them any less. Sometimes you love them more."
Sustainability is not just about protecting the environment, it's about creating a system that works for everyone.