Eight business lessons left by our ancestors

1. If you don't know the market, don't do business

2. If you want to get rich, you can open a shop. If you want to do business, go everywhere

4. Don't talk if you can't praise it; If you can't laugh, don't open a shop

5. A penny, a penny; One kind of buying, a thousand kinds of selling

6. Guess to sell fresh food, dry food, chicken barking, fish jumping

7. Villain first, then gentleman; Brothers, clear accounts

8. Businessmen, regardless of size; Commercial interests, don't forget righteousness.