NOTE: This article confuses two artists of Ancient Greece: Polykleitos (波留克列特斯, Ancient Greek: Πολύκλειτος) and Polygnotos (Ancient Greek: Πολύγνωτος). This article needs to be split up into to two separate articles: 1: Polykleitos came from Argos (阿尔戈斯), he was a sculptor in bronze and an art theoretician. He wrote what is called the Canon (not "Conon"), which details his theories about the proportions of the human body to be represented in works of art. His main sculptural works include the Spear-carrier (Doryphoros) and the Discus-bearer (Discophoros). 2: Polygnotos was the son of Aglaophon (Ancient Greek: Ἀγλαοφῶν). He came from the island of Thasos (萨索斯岛, Ancient Greek: Θάσος). This Polygnotos was a painter. There were also a famous vase paiter from Athens with the name of Polygnotos and further two vase painters with the same name. Both Polykleitos and Polygnotos worked in Athens in the 5th century BCE (Polykleitos lived into the 4th century BCE).
Note (again): I made this correction once before, but somebody calling himself Walter Grassroot removed my correction; he has obviously not understood the problem and does not know the facts of Greek art history. The correction needs to be made and written in Chinese. The matter is complex: the links from the English version referring to both Polygnotos and Polykleitos end up on this page, despite the fact that these were two different artists. 中国艺术史专家需要编辑这个网页，谢谢！