What is the original intention of Mrs. Bear's joke?

Answer who has more firewood, satirize the fake scholar. My wife's original words are: As I grow older, I have no knowledge at all, but I have a joke. Xiao Ji is a collection of jokes by Cheng in Qing Dynasty, also known as Zeng Ji and Complete Works of Zeng Ji. Written in the 25th year of Guangxu in Qing Dynasty (1899), there is no volume. "Little Guang Lin" is a masterpiece of ancient folk traditional jokes in China, which was collected by the owner of the famous game in Qing Dynasty.