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The price of freedom is eternal vigilance.
Quality is more important than quantity.One home run is much better than two doubles.
建筑必须是一个活生生的、有呼吸的实体。
Everything is connected, everything.
The utility of an idea determines its place in mental life.
The mathematician's patterns, like the painter's or the poet's, must be beautiful; the ideas, like the colors or the words, must fit together in a harmonious way.