Playing with Mao will mean you are “Philosophical” and “Organized”.
“Philosophical” means that you will have a bonus of Great People appearance (+100% birth rate). However, doubling zero is still zero – so you should either build wonders or create specialists in your cities. Universities (that speed up your research by 25%) are built with double speed, so discovering Education and building Libraries (required for University) is very logical.
“Organized” means you have to pay less for your civics – making the usually expensive Police State, Vassalage, Environmentalism and Organized Religion less painful. It also enables you to construct the “Courthouse” and “Lighthouse” at double speed, making the discovery of Sailing and Code of Laws logical. The latter is generally more important as the first to discover founds “Confucianism” religion. Courthouses will also lead you to the Forbidden Palace – reducing the corruption in your empire. You should also be inspired by the fact that Writing (leading to Code of Laws) is very close as Animal Husbandry can be researched right away.