To put it bluntly, this composition is dedication, and the spirit of unity of body and mind is the core view of Confucianism.

If you can understand it to this extent, it will be easier to write.

Throw out arguments from the beginning, take a positive attitude and hit the nail on the head. For example, you can write like this:

Most people know that if we don't do what we can and can't do, it will definitely affect the life and death of the nation and the country. If the country can't survive, will there be any eggs left under the cover of the people's nests?

Then you can make a list of arguments.

Yang Jingyu, the hero of the Anti-Japanese Union, had run out of ammunition and food to deal with the Japanese invaders in the northeast, and finally he fought alone. When the Japanese army killed him, the autopsy found that his stomach was full of grass roots and bark. Yang Jingyu knows that he can't win by himself, but he still lives for justice. This is to know that he can't do it, because although one person can't do it, he can do it and achieve his goal as long as everyone does it.

During the Three Kingdoms period, Zhuge Liang went to Qishan six times to crusade against Wei. At that time, Wei's tide was gone and it was almost impossible to win. But Zhuge Liang clearly stated in his model: Do your best and die. This is knowing what you can't do, and success is not necessarily in me.

At the end of the Ming Dynasty, Wen Tianxiang, who also lost his spirit, still refused to surrender to the Yuan Army and fought to the end until he was captured. It's also because he knows he can't do it. Behind him, what we see is Wen Tianxiang's national integrity, a song of righteousness that stirs the soul and keeps his heart alive.

Finally, you can point out:

Knowing that it cannot be done is the soul and blood of the Chinese nation and the spirit in the spirit. Only when we really understand the meaning, can we stand among the nations of the world.

Although the above is not a complete composition, it gives you the most perfect idea. You only need a little content to write it.

I hope to adopt it.