Zhang Hong
Yu Fan made annotations to the "I Ching" and sent his writings to Kong Rong, the Minister Steward (少府) in the Han central government. Kong Rong praised Yu Fan's writings and remarked that they made him realise that there was "more about the beauty of the southeast than just the bamboo arrows of Kuaiji". Zhang Hong, another official serving in Kuaiji Commandery, also wrote mentioned Yu Fan in a letter to Kong Rong: "Scholars used to scorn Yu Zhongxiang. A beautiful piece of jade may look simple on the outside, but it sparkles after it is polished. The ridicule he faced then had no negative effect on him."