Why must the law change?Everything between the heaven and the earth remains unchanged: day and night become the sun; cold and heat become the year; the earth rises, the liquid is scorching, the heat melts and the ice moves, and becomes the earth; , the kangaroo spine beast, born and died, changing from generation to generation, forming the world; purple blood and red blood, flowing into the body, exhaling charcoal and inhaling nourishment, continuing from moment to moment, changing day by day, and becoming a living person.By saying that it does not change, the heaven, earth and human beings will cease to exist from time to time.The axioms of ancient and modern times are also the axioms of old husbands who change: the law of tribute and assistance becomes rent and adjustment, and the transfer of rent and adjustment becomes two taxes, and the two taxes become a whip; The cavalry became the forbidden army; the method of school promotion became the recommendation, the recommendation became the nine-rank Zhongzheng, and the nine-rank became the subject.Up and down a thousand years, all times remain the same, nothing remains the same, justice is of course, it is not the wife's fault.Those who talk about invariability often say "keep the old and keep the old", and you know that from the ancient times, the ancient times, the middle ancient times, and the modern times to the present day, you don't know the thousands of changes.What people today regard as the ancient law and keep it, how can it be calculated according to the meaning of the ancients?

Today's natural changes are the way of heaven; if they change, they will be good, or if they change, they will be poor.If there is a human being, it will be judged by the wise.There is a saying: "Scholars go up, don't learn to go down." The same is true for governance: if you let your heart and let it go, and listen to its changes, you will become poorer day by day;In ancient times, Wu Kui was ordered by one surname, and the law was established. After a few leaves, the practices of his descendants must be different from those of their grandfathers.But the kings and the people, up and down, still think that my ancestors rule the world according to the law of today. The former ruled the world with it.Those who are on behalf of the generation examine their weaknesses and change them, and Si is the new king.Gou Qi's descendants have achieved this meaning, judged their own weakness and changed themselves, and Si is called Zhongxing.The revival of the Han and Tang Dynasties is certainly true.

"Poetry" said: "Although Zhou is an old state, its destiny is to restore the new." It is said that new laws must be used to govern the old state.Its affairs are very smooth, its righteousness is clear, there is an opportunity to do it, there is a way to take it, there is a tendency to do it, and there is no reason for delay.Those who talk about the unchanging still say "keep the old and keep the old", and sit back and watch the traditions and slack, and remain indifferent to it.Alas!Don't you mean bewildered? "Yi" said: "If you are poor, you will change, if you change, you will become better, and if you become better, you will last forever." Yi Yin said: "Use what is new and get rid of what is old." Disease does not exist.If you don’t have candles at night, you will be ignorant, if you don’t protect your fur in winter, you will be cold, if you cross the river and take a land cart, you will be in danger, if you are easy to prove, you will die if you try the old prescription.Today, it is dedicated to the righteousness, shouting loudly, following the legacy of the training and reciting the training, and following the meaning of sarcasm and admonishment, saying that it is innocent, and those who hear it are happy. It is sixty articles, classified into twelve, knowing that I am guilty, It has no words.