Thoughts of lawn boy after reading 200 words

The story goes like this. One day, the hero had a summer vacation. He drove his grandfather's old lawn mower and started mowing other people's lawns, earning his first bucket of gold. Gradually, business is getting better and better and the protagonist is getting busier and busier. Later, he met a stockbroker named Arnold, who taught the hero such knowledge in a very interesting, vivid and easy-to-understand way: the charm of capital, the relationship between supply and demand, the diversification of labor force and the distribution of wealth.

After that, Arnold invested the hero's money in various ways, making the hero richer and richer, and making him a boxer's patron ... making his summer vacation interesting and colorful!

After reading this book, I understand that we should take good care of and preserve the things and tools around us. Just like a sentence in the book-"Manage your tools, and they will manage you.