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The fundamental impulse that sets and keeps the capitalist engine in motion comes from the new consumers' goods, the new methods of production or transportation, the new markets, the new forms of industrial organization that capitalist enterprise creates.

A man's errors are his portals of discovery.

過去是知識(shí)的巨大源泉，但也是幻覺的巨大源泉。

The stone industry must embrace sustainability to survive in the long run.