Every poem and sentence of Jia Dao has been repeatedly tempered and carefully revised. However, after he wrote it, the reader couldn't see the trace of revision at all, as if it were completely natural and in one go. Therefore, the so-called bitterness can only be seen from the author's efforts, and as for the aspects that readers appreciate, don't look at the author's bitterness. Jia Dao's bitter spirit has a great influence on later generations.