The socialist system will eventually replace the capitalist system; this is an objective law independent of man's will. However much the reactionaries try to hold back the wheel of history, eventually revolution will take place and will inevitably triumph.
I'll have to read your link to fully understand the context of what you posted but it seems very interesting, thanks.
I strongly agree with the second quote but I am not sure how it relates to the inevitability of a revolution, I'll have time to read further later tonight