Where did Marx recognize his own limitations?

[Saullos]

I'm working on a paper and am in need of help finding a quote. I could've sworn that reading through Marx's works I came to a point in which Marx himself said that: his own knowledge and work were forever limited by his own situation, I believe he specifically mentioned his time of life but more importantly his own class origin.

I could've sworn that effectively he was saying was that his thoughts would be more fully developed in the future by those belonging to the proletariat.

Does anyone know of where I might have come across this? Thanks!

[Kléber]

I don't know where to find that quote, but the absence of a schematic blueprint for socialism from Marx's works, which anti-communists cite as his greatest failure, was really because he felt the working class itself must design and build its own society. The revolution could only be based on real-world conditions too numerous and complex for some philosopher to sit around and figure out all the problems beforehand just by thinking about it in his office. Marx called the Paris Commune the "form at last discovered" by the workers themselves for workers' power. That's from here - http://www.marxists.org/archive/marx/works/1871/civil-war-france/ch05.htm

[Nothing Human Is Alien]

He refused a few positions on a class basis:

"Citizen Marx has just been mentioned; he has perfectly understood the importance of this first congress [of the IWMA], where there should be only working-class delegates; therefor he refused the delegateship he was offered in the General Council." - James Carter, Geneva Congress of the First International.

"...Victor Le Lubez ... asked if Karl Marx would suggest the name of someone to speak on behalf of the German Workers.' Marx himself was far too bourgeois to be eligible so he recommended the emigre tailor Johann Georg Eccarius..." - Karl Marx: A Life, Francis Wheen.