What was Conficius's main goal? what did he want to show the world?

His main idea is to administer the country with morals. Regarding personal relationships he once said that 'Do not do unto others what you would not want others to do unto you'. He advocated the syncretism of nature and human beings and suggested that people live harmoniously with nature.

Actually, Confucius wanted to resolve Chinese political conflict. He wanted Chinese people to learn about Legalism before they got consequences because Legalism didn't teach them and they just gave them consequences straight away. Confucius had potential to explain to them about what you do will make you suffer the consequences of legalism.