This focus on labor gave rise to the perspective created by Marx and his longtime collaborator Friedrich Engels – a perspective known as historical materialism.

这种对劳动关注催生了长期合作者弗里德里希·恩格斯创造观点——一种被称历史唯物主义观点。

But Marx had never really gone away, whereas Friedrich Engels the man who worked hand in glove with him for most of his life and made a huge contribution to " Das Kapital" - is almost forgotten.

其实，从未真正离开。而弗里德里希.恩格斯，这个伴随大半生且对《资本论》诞生贡献巨大挚友——却几乎已被世人淡忘。