50 mark 10. was a socialist writer who called for the overthrow of capitalism. his major works were the communist manifesto and 11. he believed that the working class and the middle class struggled against each other for a greater share of after a revolution staged by the working class, personal would no longer exist.12. what name did he and others use for the working class? what did he call the middle class? day 3readreading guide13. was an english scientist who proposed a theory known as “natural selection.”14. the idea that living things have changed over time appeared in the book, in 1859.15. thomas malthus believed that population growth would exceed food supply. how did his beliefs influence society?