Pick up the Four Seasons Health and Xu Wenbing's book on the small bookshelf beside the bed.
It says that the purpose of health preservation is justice and peace, regardless of spring, summer, autumn and winter. "Righteousness and peace, don't go to extremes" is another statement of Confucian "golden mean" and the basic law of health preservation. For example, at noon and noon, it is the junction of yin and yang. At this time, you must sleep quietly. Therefore, the ancients paid great attention to "meridian sleep".
The so-called health preservation means eating well and sleeping well. When eating, eat quietly; When it's time to sleep, sleep peacefully.
Being a man means speaking well and doing well. Do the right thing, do the right thing.