Lenin: 1905/3rdcong2: SPEECH ON RUMYANTSEV'S RESOLUTION ON THE SPLINTER SECTION OF THE PARTY https://www.marxists.org/archive/lenin/works/1905/3rdcong2/28.htm
The New Testament: “Ego” by Karl Marx https://marxistleninists.org/M&E/1845/german-ideology/ch03g.htm