"I hope to see the original work publicly: if it is enough, it will continue to be the history of Han Dynasty, so as to redeem it, fortunately." What do you mean?

It means: If I (Cai Yong) can engrave my forehead with ink and cut off my feet, it will be my (Cai Yong's) blessing, so that I can continue to write the history of the Han Dynasty, so as to alleviate my sins.

From Chapter 9 of Romance of the Three Kingdoms: Except for the violent murderer Lu Bu who helped Stuart, the criminal Li Jue obeyed Jia Xu.

This is what Cai Yong said. Wang Yun killed Dong Zhuo, Cai Yong cried Dong Zhuo, and Wang Yun was furious. Cai Yong said, "Let the public see the original: I will be beheaded first and continue to be a history of the Han Dynasty to atone for my sins."

Cai Yong: (A.D. 133- A.D. 192), born in Boshu and Chen (now Chenliu Town, Kaifeng City, Henan Province), was a writer and calligrapher in the Eastern Han Dynasty. Dong Zhuo, a powerful minister, worshipped Zuo Zhonglang as a minister when he was in power, so later generations also called him "Cai Zhonglang". The father of Cai Yan (Cai Wenji), a famous talented woman in the Three Kingdoms period.