Who can distinguish the jade in the stone and the stone breaking the sky in the swordsman's journey

Shi Zhongyu and Shi Potian were two important characters in " Journey of Chivalrous Men ". Although their names were similar, their backgrounds and personalities were completely different. Shi Zhongyu was a famous swordsman in Jianghu. He was good at using long swords. He was gentle, kind, upright and loyal. Shi Potian, on the other hand, was an extremely conceited and highly skilled young man who liked to be alone and did not like to be controlled by others. Shi Zhongyu and Shi Potian did not have an obvious friendship. The two of them often fought with each other in Jianghu. Although their names were similar, Shi Zhongyu and Shi Potian's appearances and personalities were completely different, so it was difficult to determine who could distinguish Shi Zhongyu from Shi Potian.