tokens: This is because the former two given " fatherhood " are indeed the most essential factors of the national character and institution of the socialist new China , while the latter two dubbed " son " in this article -- are indeed the ideological outcomes derived after the death of China 's founder Comrade Mao Zedong under tremendous international and domestic political pressures on planned economy and public ownership , which grew into today 's para-system after about 30 years of reform and opening up .