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Coal isn't just a commodity; it's the foundation upon which modern civilization was built.
煤炭不仅仅是一种商品,更是现代文明赖以建立的基础。
La memoria es fundamental para no repetir los errores del pasado.
The aim of art is not to represent the outward appearance of things, but their inward significance.
数学家的工作大多是孤独的追求,但它建立在许多其他人的工作之上。
The whole is more than the sum of its parts.