This does not mean to belittle the value of Fu Dan's book.

We should have the merit of cutting Fu Dan's book-it has not achieved the extraordinary merit of Dan Shu and Iron Voucher.

"The ancestor of servants not only has the merits of cutting Fu Dan's book, but also has the ephemeris of literature and history, which is almost between divination and blessing, and has been teased by the Lord, advocating superior livestock and being lighter than customs."

The whole paragraph is translated as follows:

My ancestors, who didn't get the extraordinary feats like Dan Shu and Iron Voucher, were engaged in drafting documents, compiling historical materials, recording astronomical phenomena and making legal calendars. (Their position) is close to the position between divination officials and Taizu. They were originally teased by the emperor, raised as musicians and actresses, and despised by customs.