《元史·列传·卷五十》
街巷的百姓只有升斗食粮的家产，还晓得要有继承人。天下之大，社稷之重，若不早立太子则不是正确国策。
闾阎小人有升斗之储，尚知付托，天下至大，社稷至重，不早建储贰，非至计也。
"Even the common people in the streets, who only have a few bushels of grain to their name, understand the importance of having an heir. The nation is vast, and the state is heavy. If you do not establish a Crown Prince soon, it will not be in accordance with the correct principles of government."
<s>[INST] Kindly elucidate the central themes in this passage in English: 闾阎小人有升斗之储，尚知付托，天下至大，社稷至重，不早建储贰，非至计也。 [/INST] "Even the common people in the streets, who only have a few bushels of grain to their name, understand the importance of having an heir. The nation is vast, and the state is heavy. If you do not establish a Crown Prince soon, it will not be in accordance with the correct principles of government."</s>
Kindly elucidate the central themes in this passage in English: 闾阎小人有升斗之储，尚知付托，天下至大，社稷至重，不早建储贰，非至计也。
user
"Even the common people in the streets, who only have a few bushels of grain to their name, understand the importance of having an heir. The nation is vast, and the state is heavy. If you do not establish a Crown Prince soon, it will not be in accordance with the correct principles of government."
assistant