Gong Sunlong's sophistry left many great scholars speechless. Later, it was said that Gong Sunlong went through the customs, and the customs official said, "As a rule, people can go through the customs, but horses can't." Gong Sunlong said that a white horse is not a horse. After some argumentation, the customs official nodded again and again and said, "What you said is very reasonable. Please pay the horse. " This allusion is similar to casting pearls before swine. The original text is as follows: Ma, hence its name; White, hence the name color. A name is not a name. Therefore, a white horse is not a horse. If you want a horse, you can have it. Ask for a white horse, Huang Ma dark horse can't cause. ..... So the yellow black horse should have a horse, not a white horse. The judgment that a white horse is not a horse. Horses have no choice but to choose colors, so yellow and black should be. The white horse won the color, the yellow black horse won the color, and only the white horse answered. If you didn't go, you must have gone. Therefore, a white horse is not a horse. Horses are colored, so there is a white horse. Make the horse colorless, and the horse is like its ears. Riding a white horse? Therefore, white people are not horses. White horse, horse and white, white and horse. Therefore, a white horse is not a horse. For the average person, saying "a white horse is a horse" is as clear and accurate as saying "Zhang San is a person". How can a white horse not be a horse?