Give me an exaggerated joke. What can you tell me about astronomy and geography?

It is called "Sailing Against the Current", a martial arts drama filmed in 2004, adapted from Wen Ruian's novel "Sailing Against the Current". Csillam plays Shaoshang Qi Wallace Chung and Gu Xichao Shaoshang Qi, known as "Nine Dragons", and Ang Lee Yuncun is the main creator. He is the kind of person who people like him as soon as they see him and want to be friends with him. After making friends with him, he is like sunshine. It was unusually warm when covered with him, and it was so cold when he ignored it. In his eyes, there is neither wealth nor poverty. All people are like him, and emperors and beggars can be their friends and partners. It was his generous character that made him meet Li Ling in a fight against injustice and received a sword facing the cold water. In this sword, there is a big secret. Gu Xichao, the son of a prostitute, is brilliant and skilled. He is far away from the rivers and lakes and has the ambition to serve the country. He studied the art of war for four years and wrote a book, Seven Strategies, eager to contribute to the country. However, because of his background, he was given a cold shoulder and could not serve the country. He prides himself on "knowing astronomy above and geography below, being gentle, respectful and frugal;" , Yang, know gossip, know strange door, know shield armour; In the process of strategizing, you will win thousands of miles away. Ego is on a par with Le Yi and Guan Zhong's "saints". Although it shows arrogant nature, it is also a true portrayal of his surprise.