He was renowned for his doctrine on beauty, in which he defined it as an equation derived from the commensurability of all the parts of the body. His known work, titled Kanon, described the perfect system of proportions for each part of the body. 
Polykleitos set up his home as well as his workshop in the town of his birth, gaining fame for his works. At some point during the Peloponnesian War, a group of priestesses from Elis approached him, and commissioned a statue of the Eagle Bearer, the Spartan misthios Kassandra, from him. Polykleitos accepted the offer, and journeyed to Elis.
After regaining his tools with Kassandra's help, Polykleitos told her of the adoration her deeds had inspired in the people of Linou, while they headed to the settlement. Appreciating the chance to learn a little about the person he was meant to sculpt, Polykleitos talked with Kassandra happily.