{"slug":"thinker-karl-marx","verification":{"valid":true,"entries":4,"head":"a23d6dbd15db7eab4d65e89424c2922ffe37799638fa12987f7dfa07c55ac82c"},"count":4,"sources":[{"id":"s1","type":"other","url":"https://www.marxists.org/archive/marx/works/1848/communist-manifesto/","title":"The Communist Manifesto","quote":"The history of all hitherto existing society is the history of class struggles.","summary":"Opening sentence of the 1848 Manifesto by Marx and Engels.","claim_ids":["c1"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-07T07:14:01.023Z","link_status":"ok","quote_status":"unverified","prev":"genesis","hash":"e4c01a7100818c0df5db3ef8c71092574ec2b9b161e6d96c8ff4dca31accdc53"},{"id":"s2","type":"other","url":"https://www.marxists.org/archive/marx/works/1859/critique-pol-economy/preface.htm","title":"Preface to A Contribution to the Critique of Political Economy","quote":"It is not the consciousness of men that determines their existence, but their social existence that determines their consciousness.","summary":"1859 statement of historical materialism by Marx.","claim_ids":["c2"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-07T07:14:01.023Z","link_status":"ok","quote_status":"verified","prev":"e4c01a7100818c0df5db3ef8c71092574ec2b9b161e6d96c8ff4dca31accdc53","hash":"30040000e1ef2001295034e9208c3b4bc2ffbe22d705c0e8f0525f2f8067508f"},{"id":"s3","type":"other","url":"https://www.marxists.org/archive/marx/works/1867-c1/","title":"Capital, Volume 1","quote":"The capitalist who produces surplus-value appropriates it.","summary":"Analysis of surplus value in Capital Vol. 1, 1867.","claim_ids":["c3"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-07T07:14:01.023Z","link_status":"ok","quote_status":"unverified","prev":"30040000e1ef2001295034e9208c3b4bc2ffbe22d705c0e8f0525f2f8067508f","hash":"bdb8a4d5504114a676400ed846aafb4a8b5775f28523a1d25ddcb9bd6a48947d"},{"id":"s4","type":"other","url":"https://www.marxists.org/archive/marx/works/1845/german-ideology/","title":"The German Ideology","quote":"in contrast to German philosophy which descends from heaven to earth, here we ascend from earth to heaven.","summary":"1845-46 text framing materialism against idealism.","claim_ids":["c4"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-07T07:14:01.023Z","link_status":"ok","quote_status":"unverified","prev":"bdb8a4d5504114a676400ed846aafb4a8b5775f28523a1d25ddcb9bd6a48947d","hash":"a23d6dbd15db7eab4d65e89424c2922ffe37799638fa12987f7dfa07c55ac82c"}]}