Literature Reference: 荒坟秋陌上，霜露正霏霏。松柏自成拱，苫庐长不归。浮埃积蓬鬓，流血在麻衣。何必曾参传，千年至行稀。—— 《题孝子陵》 On the autumn path by a desolate grave, frost and dew fall thickly. Pines and cypresses stand in a natural arch, and the thatched hut remains unreturned. Dust accumulates on disheveled hair, and blood stains the hemp clothes. Why mention Zeng Shen’s legacy when such rare supreme conduct spans a millennium? Source from 'Inscription on the Tomb of a Filial Son'.
至: Arrive; reach the pinnacle, the utmost, attaining the zenith.
行: Proficient in a certain matter, it generally signifies smooth progress in all affairs, with the character "Zhi" carrying auspicious connotations.
Meaning: Supreme conduct refers to the highest level of moral character and behavior, signifying nobility and excellence.