Kàn Zé appellation Dérùn was a Kuàijī Shānyīn man. His family for generations were farmers, reaching Zé he enjoyed study, lived in poverty without resources, and always was by others hired to write, and by this provided with paper and pen, and when what he wrote was completed, he also could recite it all. He sought teachers for lectures, and studied and read various books, and simultaneously was skilled in calendar calculations, and because of this had prominent reputation. He was nominated as Filial and Incorrupt candidate, sent out as Qiántáng Chief, promoted to Chēn Magistrate. When Sūn Quán became Elite Cavalry General , he was recruited to fill vacancy as West Department Official. At the taking of Imperial Title , Zé was appointed Secretariat. During Jiāhé [232-238], he became Internal Documents Director, also Attendant Internal. Chìwū Fifth Year , he was appointed Heir-Apparent’s Grand Tutor, with office in Internal Documents as before.
Zé believed classic works writings were many, and difficult to completely employ, and therefore deliberated the various schools, amended and judged the Lǐ‘s writings and various commentaries to teach the two Palaces [of the Heir-Apparent and King of Lǔ], making regulations for conduct going out and in and meeting guests ceremonies, and also wrote Qiánxiànglì zhù to standardize times and days. At every Court great discussion, if there was doubt about the classics, then they consulted and asked him. For his Classicist scholarship diligence, he was given fief as a capital village Marquis.
By nature he was polite and modest and sincerely cautious, the Palace Office’s lesser officials, he would call and answer and question, all treating with equal ceremony. If another had a wrong or shortcoming, his mouth never spoke of it, and if appearance seemed to be insufficient, however what was heard was rarely exhausted.
[Sūn] Quán once asked: “Of books and writings and rhapsodies, what is most beautiful?” Zé wished to use parable to enlighten governing chaos, and therefore answered Jiǎ Yì’s Guò Qín Lùn “Discussion on the Mistakes of Qín” was greatest, and [Sūn] Quán read and studied it.
Previously, as Lǚ Yī’s treacherous crimes were discovered, managers thoroughly punished, memorializing for death sentence, some believing it was appropriate to add burning and dismemberment, to make an example of utmost evil. [Sūn] Quán asked Zé, and Zé said: “In flourishing enlightened age, it is not appropriate to again have these punishments.” [Sūn] Quán followed this.
Also of the various officials having resentments, there was wish to increase heaviness of regulations and restrictions, to restrain and control subordinates, Zé every time said: “It is appropriate to comply with the Rites and Law.” His harmony and uprightness, was all of this sort. (1) Sixth Year  Winter he died, [Sūn] Quán lamented and mourned, and could not eat for several days.
- (1) Wúlù states: Yú Fān praised Zé: “Scholar Kàn is outstanding, surpassing Shǔ’s Yáng Xióng. He also said: “Master Kàn’s Classicist method and virtue and conduct, also is the present’s [Dǒng] Zhòngshū.” Previously, Wèi Wén-dì [Cáo Pī] ascended the throne, [Sūn] Quán once casually asked his various ministers: “Cáo Pī in his flourishing years ascended the throne, and I fear I cannot match him [in length of life], what do you sirs believe of it?” The ministers had not yet answered, and Zé said: “Not reaching ten years, Pī will have died. You the Great King need not worry.” [Sūn] Quán said: “How do you know this?” Zé said: “By the characters speaking of it, Not 不 and Ten 十 make Pī 丕, this is his calculation.” Wén-dì indeed in seven years perished.
- Your Servant Sōngzhī calculates Sūn Quán was older than Wén-dì by five years, this seniority difference is negligible.
Zé’s hometown’s elder generation Dānyáng’s Táng Gù also cultivated himself and accumulated learning, was praised as a classicist, and wrote Guóyǔ, Gōngyáng, Gǔliáng Zhuàn commentaries, always teaching several tens of men. When [Sūn] Quán became King of Wú, he appointed [Táng] Gù as Consultant Cadet, and from Lù Xùn, Zhāng Wēn, Luò Tǒng and others all respected him. Huángwǔ Fourth Year  he became Secretariat Deputy-Director, and died. (1)
- (1) Wúlù states: Gù appellation Zǐzhèng, at time of death was over seventy years.