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The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
过去从来不仅仅是过去。它始终是现在的基础。
最痛苦的并非痛苦本身,而是孤独地承受痛苦。
A city is not a collection of machines but a container of life.
可持续性不是一种趋势,而是食品生产的未来。