Heaven rewards diligence, these four words are the original words of Shi. What's the market price now?

The value of calligraphy is divided into market value and cultural value. The market value reflects the transaction price at that time. Booksellers who trade a lot know how much money. Both sides with less transactions think it is appropriate to conduct transactions. This price is market value, and cultural value is potential. If the market value of the collection exceeds the cultural value at that time, it will be more expensive. If you are optimistic about the potential cultural value of a work, keep it well. With the passage of time, the cultural value of the work will certainly be revealed, sometimes it is extremely long.