“Love in BC”is a course in which "love" is not a affection but a hobby. “B.C.”, namely"Xi Yuan Qian" in Chinese, represents the ancient time. Therefore, the contents of the course mainly focus on the hobbies of ancient Chinese. As the Chinese saying goes, "Etiquette is known when granaries are well stocked, and honor and disgrace are known when food and clothing suffice." The hobbies of ancient Chinese people derived from the fact that ancient China had a well developed and prosperous society with splendid ancient civilization. Various needs and hobbies were nurtured based on the material situation. Chinese people emphasize on body building and pursuing the continuation of life through two ways, one of which is traditional Chinese medicine while the other is martial arts. The essence of so-called martial arts,refers to ceasefire. “Wu” means "to stop fighting". Martial arts, literally means the art of ending wars, the purpose of which is to be self-reliant, self-protective and self-secure. There are many schools of martial arts: the word "Tai Chi" in “Taijiquan” is one of the most characteristic and representative philosophical thoughts in ancient China. The concept of “Taijiquan” is to relax through stillness, static braking and soft cracking, to strengthen the body and prolong life span. Xingyi Boxing reflects the harmonious development of Chinese people with nature, observing things carefully and using it as a way of fitness for their own benefit. When it comes to "Cuju", "ju" refers to the ball with leather cover and rice bran inside. As early as some 2000 years ago during the Warring States Period, Cuju, a recreational game, was popular among the Han people. In the Han Dynasty, someone wrote Twenty-five Pieces of Cuju, which is the earliest book on sports in China and even in the world at large. Later, it became popular to ride a horse and hit the ball into the hole with a bat, called "jiju",as well as “polo”. Playing polo once enjoyed great popularity, which not only became a prevalent sport for emperors and nobles to keep fit, but also played an important role in foreign cultural exchanges.