Know yourself and yourself. Whether you intend to settle down and become a local businessman, or you want to be a powerful minister under one person and above ten thousand people, or even a person with supreme power, you must understand the original development of history. Therefore, I don't need to mention the history of the necessity of crossing.
The second book, health and wellness handbook.
In ancient times, if you can have a good medical skill, you can solve most problems. Not to mention that good medical skills are of great help to soldiers. To some extent, medical skills can also be a means for you to "get rich". After all, if you can help those in power to treat any incurable diseases, gnome male-". ...
The third book, basic knowledge of agriculture.
As the saying goes, food is the most important thing for people. Even Zhu Yuanzhang's emphasis on repairing the world is to build high walls, accumulate food widely, and slowly become king.
Therefore, the importance of food to people is self-evident. Advanced agricultural technology is definitely a powerful force to promote the development of ancient China.
The fourth book, Fundamentals of Industrial Principles.
As for the development of industry, it is impossible for China to enter the industrial revolution with only one person, as in some travel novels. Industry is a systematic development process, and any link will affect the whole body. Therefore, laying a good foundation, rather than mindlessly "climbing the tree of technology", is what a qualified traveler should do.
The last book, the encyclopedia of military knowledge.
I think I don't need to say more about this one. The thinking of the ancients was ossified by Confucianism, and they could not accept the new things brought by travelers. So, just like Britain forcibly opened the door of the Great Qing Dynasty, armed struggle is essential for China to make radical changes. If you travel through troubled times, this is the guarantee for you to settle down.