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幸福的关键因素并非是物质的或审美的,而永远是心理上的。《旅行的艺术》
Hope is a good thing, maybe the best of things, and no good thing ever dies.
Mathematics is the art of turning complexity into clarity.
The only limits that exist are the ones you place on yourself.
写作是面对过去的一种方式。
最具创新性的想法往往来自倾听那些最接近客户的人。