https://us.politsturm.com/lenin-on-the-essence-of-social-chauvinism-and-opportunism
Lenin on the Essence of Social-Chauvinism and Opportunism
"Social-chauvinism and opportunism are the same in their political essence; class collaboration, repudiation of the proletarian dictatorship, rejection of...
on thesocial chauvinismleninessenceopportunism