The premise of hard work is to increase the quantity first. Many people are stuck at a stage where they can't even increase the quantity, but they hope to get something for nothing. This state of high expectations and low skills, and fear of loss, often falls into the fantasy of shortcuts and freeloading, but they don't know that freeloading is the most expensive. Blind efforts are actually slavery to a certain extent. Although the quantity has increased, it is blindly running wildly and can't find the potential energy for takeoff. This kind of effort is just brute force. From the word "Nu", we can see that it has the hidden meaning of "bitter" in the Chinese context. After all, it is a phono-semantic character derived from "slave". We have known since childhood that "If you don't work hard when you are young, you will regret it when you are old."