From ancient times to the present, the word "art" in learning from teachers refers to some skills with relatively high technical content, such as martial arts, literature, art or crafts, which can be called the skills to solve the problem of food and clothing, and does not include the contents of mathematics, physics, politics and other disciplines that ordinary people can learn everywhere. Of course, in ancient times, the meaning of "technique" was relatively wide, and there were even stargazing in astronomy and asking for heaven in medicine. Literature is also art, and it is also included.

Therefore, when it comes to learning from the teacher, it is to sincerely ask the teacher to accept you as his student and learn the skills mentioned above from him with an open mind.