《管子·五行》
已经符合精气要求就应当经常保持，经常保持也就有了规范。
已合而有常，有常而有经。
Once you have achieved accord with the requirements of the spirits, you must constantly maintain it, and once you are constantly maintaining it, routine sets in.
<s>[INST] Convert the following English text into Classical Chinese: Once you have achieved accord with the requirements of the spirits, you must constantly maintain it, and once you are constantly maintaining it, routine sets in. [/INST] 已合而有常，有常而有经。</s>
Convert the following English text into Classical Chinese: Once you have achieved accord with the requirements of the spirits, you must constantly maintain it, and once you are constantly maintaining it, routine sets in.
user
已合而有常，有常而有经。
assistant