K. Marx had deep love for mathematics. For decades, he persisted in studying mathematics at leisure, taking nearly one thousand pages of mathematical notes, which still remained.
马克思热爱数学，几十年坚持不渝地利用闲暇时间学习数学，留下了近千页的数学手稿。
K. Marx had deep love for mathematics. For decades, he persisted in studying mathematics at leisure, taking nearly one thousand pages of mathematical notes, which still remained.
马克思热爱数学，几十年坚持不渝地利用闲暇时间学习数学，留下了近千页的数学手稿。
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