From: On the Six Kingdoms, the representative work of Su Xun, a writer in the Northern Song Dynasty, the original text is as follows:

Think of my grandfather, dew cream dew, cut thorns to make room. Children and grandchildren don't cherish it very much, and giving it to others is like throwing away dirt. Cut five cities today, ten cities tomorrow, and then sleep for one night. Looking around, the pool is coming again.

Translation:

Looking back on their ancestors, they braved the frost and dew and cut through thorns to get a little land. But children and grandchildren don't cherish it very much. Giving it away is like abandoning grass. Cut off five cities today, ten cities tomorrow, and then you can have a good sleep. When I got up and looked around the border, Qin's army came again.

At the beginning of the Six Kingdoms, the reasons for the demise of the Six Kingdoms were first put forward. Su Xun believed that the six countries perished not because their weapons were not sharp, nor because they fought badly, but because they used land as a bribe to make peace with Qin. This is actually weakening our own strength, encouraging the enemy's aggressive ambition and pushing ourselves to destruction.

Extended data:

During Su Xun's lifetime, the Northern Song Dynasty paid a large amount of silver and commodities to Qidan and Xixia every year. As a result of this bribe, it encouraged the arrogance of the Khitan and Xixia, increased the burden on the people, greatly damaged the national strength and brought endless disasters. In other words, at that time, the Northern Song Dynasty was surrounded by peace in policy, poor and weak, and Su Xun wrote Six Kingdoms to address this reality.

Su Xun, a famous essayist in Northern Song Dynasty, was called Laoquan. According to legend, when I was twenty-seven, I made a determined effort to study, and I failed the exams of Jinshi and maocai. So he set himself on fire in a rage, wrote articles on weekdays and studied behind closed doors again. Finally, he learned about the works of six hundred artists and wrote thousands of words.

Wei Wen is good at strategizing, his language is clear and fluent, his brushwork is vigorous, he is fierce and sharp, and he is very interesting in the Warring States period. Together with his sons Shi and Zhe, they are called "Three Soviets", and they are all included in the "Eight Masters of Tang and Song Dynasties".

References:

Baidu Encyclopedia-Six Kingdoms Theory