Retired vice-president of the Chinese Academy of Social Sciences Liu Ji is planning to write another two books. 'It's my personal wish to continue doing research,' he said. 'While I still have a clear mind, I'd like to write two books. The average life expectancy of a Chinese person is 72 or 73 so I figure I have another 10 years or so now that I've gone backstage.' Mr Liu, 64, considered an adviser to President Jiang Zemin , was responsible for drafting a number of party documents. A mechanical engineering graduate from Qinghua University, Mr Liu went from writing science publications to producing numerous political works, including Modernisation and China and A Discussion of the Problem of Contemporary Capitalism. He also edited Seventy years of the Chinese Communist Party and A Heart-to-Heart Talk with the Party General Secretary. At the academy, Mr Liu was widely known for his ardent involvement in discussions with a youth theorist group. One of his most celebrated quotes was: 'Elderly officials should spend more time with young people. If even your children refuse to listen to your old theories and old dogma, you don't need to tell it to the public.' He also said: 'Leaders should not be afraid of academics arguing with them. Where do the ideas of the leaders come from after all? If academics all say their piece, then you, as leaders, can pick out what is good and go by it.'