Mr. Lu Xun once said: "Labor is the essence of human beings, and labor is the source of all things." The meaning of this sentence and the idea behind it will be analyzed in detail below.

1. Labor is the fundamental attribute of human beings.

Human beings are the only creatures with labor in nature, and labor has become an important foundation for human development and prosperity. Human beings obtain basic living conditions such as food, clothing, housing and transportation through labor, and at the same time constantly explore their own potential and realize their personal values.

2. Labor is the source of social progress.

Labor needs all kinds of means of production and labor tools, which has contributed to the continuous progress of human invention and creation. The knowledge, culture and technology created by labor also provide a powerful impetus for social progress and development.

3. Labor is a symbol of national spirit.

All production activities carried out by human beings are inseparable from labor, so labor has become a common spiritual feature of different nationalities. Although there are differences in various occupations and types of work, no matter what kind of labor you are engaged in, you should be respected and affirmed, which is also the most essential quality of the nation.

4. Labor is both physical labor and mental labor.

Labor requires not only physical effort, but also cognitive, emotional and will support and input. Workers need to overcome all kinds of difficulties and obstacles, have strong internal drive and professional ethics, in order to ensure their own production efficiency and work quality.

Labor force is the key to promote economic development.

The improvement of population quality and labor skills is directly related to the country's economic strength and social competitiveness. In the era of globalization and informatization, the value and position of labor are paid more and more attention. Effective labor resources and promoting technological and institutional innovation are still the key to promoting economic development.

To sum up, Lu Xun said that "labor is the essence of human beings, and labor is the source of all things", which not only expressed the importance of labor to human society, but also emphasized the multiple dimensions and significance of labor.

In today's world, workers still play a key role in social development and progress. It is also our responsibility and obligation to acquire, carry forward and inherit the spirit of labor and respect and embody the value of labor.