Of course, there are books, preferably modern mechanical techniques in traditional Chinese characters, mathematical books on burning glass, potatoes, sweet potatoes and corn with high-yield seeds, and some Tang and Song poems (what's the point of not pretending to be alive). Rules and so on, it is best to know how to generate electricity, how to guard against aristocratic families and emperors at that time, some historical materials and recipes, and it is best to have a world map with pictures, salt refining technology, cement manufacturing technology and some brick burning technology, paper making and painting (picking girls with charcoal pens) gold. For example, don't take electronic files in the folder ditch. If you go there, you will be silly. You can also take something with you. Bicycles and scooters, hot air balloon manufacturing technology and suitcases have all been worn through. Let's say you are a monk who has just returned to the secular world. The reason is that the master asked for it before his death. In short, it's pathetic. There are medical books and glasses. If the craft is good, self-defense is an important issue in China. Buy some electric batons and pike (detachable) sappers. Yes, if you can't get along, say you will exchange books with the restaurant owner and provide him with food and accommodation. If you can't remember going to the capital at that time, don't bring some paper books, such as the Three Kingdoms, and don't break the queen of school flowers. The ancients could not understand. Let alone the examiner. When you have a certain strength, go to the palace to be an official and help the emperor conquer the world. Remember to train soldiers to pick up orphans. If the dead want to rebel, you will rebel and defend yourself.

Ps: I'm talking about books. After all, it is the lightest.

Salted fish type

All kinds of books bring some piano, chess, calligraphy and painting. Learn to learn if you can. If you can bring some musical instruments, casting books and architectural books, you can study them yourself. You can also buy people's hearts for your man. You can also make your own recipes. You can also make friends with several unknown celebrities for chefs to exercise and exercise their kidneys. If the effect is not good, it is not good. Modern herbal books and treatise on febrile diseases will be bad. You can open a bookstore of Tang poetry and Song poetry, such as Cao Mugang. Either way, you must practice traditional Chinese characters (you will be regarded as illiterate) and pay attention to risks and dangers.

Pure hand tour

A patient with severe secondary fantasies.