In ancient times, it was said that emperors should pay more attention to their health when it was cold. What did it say in ancient times?

The first part: there is no phase inside, no generals outside, and it is a pity to meet each other late. What will happen in the future? \ r \ nDownlink: the sky is unpredictable, and the earth is unpredictable. This is a measure, and it doesn't hurt to measure it. \ r \ This couplet was written by Hu,, and in Ming Dynasty. \ r \ nLiterally, the bottom line means: How high is the sky? How wide is the land? This is hard to measure. As an emperor, he should be as broad-minded as heaven and earth, so as to be inclusive, understand the whole life, and not care about the occasional unintentional offense of his subjects. \ r \ nHowever, it is ironic to combine it with the first part. The first part said that there was no sage to supplement the government, and there was no good general outside to guard the border, so we had to cede land and pay compensation. This is always the case. What will the country do in the future? If you accept this meaning, the second part can also be interpreted as not knowing what medicine the emperor is selling in the gourd. Is it weakness to lure the enemy or is the national strength really empty? God's will is unpredictable, and there may be a solution. Let's wait for the emperor's will. Should it be all right? The beauty of this couplet is that it uses more than one word. "General" has used three meanings: general, holding and future, and the next part has used three meanings: measurement, accommodation limit and estimation. Very clever, worthy of being a wonderful couplet in ancient times.