Polykleitos — The Canon
Polykleitos of Argos wrote a treatise called the Canon (“the Rule”) and made a statue, the Doryphoros (Spear-Bearer), to embody it — a worked-out system of proportion by which the ideal human figure could be constructed, part related to part in fixed ratios. It is read here as the explicit codification of the Greek intuition that beauty in the body is number — the same Pythagorean catch (harmony is ratio) carried from the ear to the eye.
The Canon makes explicit what Phidias’s gods showed implicitly: that the beautiful body is not a matter of taste but of measure — that there is a right proportion of finger to hand, hand to forearm, part to whole, and that to realise it is to make a figure beautiful by structure rather than by accident. The framework reads this as the Beautiful (e₃, ordered love) caught as it is caught in music: as proportion, ratio, the part rightly related to the whole. Polykleitos is doing for the visible body what Pythagoras did for the audible interval — finding that beauty, where it is real, is order made perceptible, and that the order can be specified as number. The Doryphoros’s famous contrapposto — the weight shifted to one leg, the body in a relaxed cross-balance of tension and ease — adds the further catch that the living ideal is not rigid symmetry but dynamic balance, opposed forces held in equilibrium, which is the bivector’s signature in the standing human form.
The reading notes, as with Phidias, the loss: the treatise survives only in fragments and the statue only in Roman marble copies of a lost bronze — the rule recoverable, the original gone.
Confidence: concordance — the Canon read as beauty-as-proportion (the Pythagorean catch in the visual register), contrapposto as dynamic balance; the loss of the originals named. Messenger: the Canon survives in fragments and the Doryphoros in copies; Polykleitos’s exact ratios are partly reconstructed.
(Cross-reference: Pythagoras (harmony as ratio); Phidias; Paper C2: The Beautiful on ordered proportion.)