And in the Kapital,

而且在整套《资本论》中
only the first volume was finished by him,

只有第一卷是由他完稿的
and it was the only first volume what he thought was ready for publication,

也只有第一卷他认为已经准备好付梓
and came out in 1867.

并最终出版于1867年
He offers a very coherent, very cogent argument.

他的观点条理清晰令人信服
It's not a messy text like the Paris Manuscript

不再像《巴黎手稿》《德意志意识形态》
or The German Ideology or the Grundrisse.

或者《政治经济学批判大纲》那样条理混乱
Marx felt this is ready to be printed;

马克思认为这本书已能够出版
and it was ready to be printed for sure.

并最终确定出版此著
And this is now his major contribution,

而如今剥削理论
the theory of exploitation.

已成为马克思的主要贡献
That is undoubtedly

毋庸置疑