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The *Four-Character Pulse Resolution* originated from Cui Zixu. Since then, there have been many editors and compilers. By the Ming Dynasty, Li Shicai's work in *Yi Zong Bi Du* (Essential Readings for Medical Practitioners) was indeed perfect, yet errors due to similar-looking characters remained uncorrected. Peng, though unworthy, respectfully presents his humble opinions for the judgment of experts.

[Section on Pulse Forms and Their Indications] In the phrase "Chen (Deep) and Ruo (Weak) indicate Yin deficiency," the character "Yin" is a printing error and should be "Yang." This is because both Chen and Ruo pulses are Yin pulses; having Yin without Yang implies Yang deficiency. Moreover, the preceding text contains the phrase "Fu (Floating) and Ru (Soggy) indicate Yin deficiency," which serves as the direct antithesis to this sentence, providing evidence. Even if the commentary interprets it as "Yin," it merely perpetuates an error based on a mistake.

[Section on the Eight Extraordinary Vessels] Regarding the phrase "From the outer aspect of the Chi position slanting upwards to the Cun position is the Yin Wei Vessel; from the inner aspect of the Chi position slanting upwards to the Cun position is the Yang Wei Vessel," the commentary divides these two vessels into left and right sides, which is likely incorrect. Li Binhu stated: "The Yang Wei Vessel originates at the meeting point of all Yang meridians and ascends along the lateral malleolus into the Wei (Defensive) level; the Yin Wei Vessel originates at the meeting point of all Yin meridians and ascends along the medial malleolus into the Ying (Nutritive) level, thus serving as the framework for the entire body." Since they serve as the framework for the whole body, how can they be distinguished by left and right? Furthermore, regarding meridian positions, the Sanjiao (Triple Burner) is still listed at the Right Chi, and the Small Intestine at the Left Cun. This contradicts his own theory in *Mai Fa Xin Can* (Heart Examination of Pulse Methods), where he argued that the Sanjiao should be distributed across three positions and the Small Intestine at the Right Chi. This is another error.

[Section on Original Pulses of the Five Zang Organs] The phrase "Kidney is at the Left Chi, pulse is Chen (Deep), Shi (Stone-like), and Ru (Soggy)" must contain a textual error. According to the *Resolution*, "Floating and small constitutes Ru." Additionally, in the chapter "Differentiating Similar Pulses" within this collection, it states: "Ru and Ruo are both fine and small. Ru appears in the floating layer and disappears upon heavy pressure; Ruo resides in the deep layer and is not visible upon light pressure." Thus, the Ru pulse cannot appear simultaneously with a Chen pulse, so why are they mentioned together here? Consulting the *Nei Jing* (Inner Canon), it says: "A normal Kidney pulse comes rushing and continuous, like a hook." Therefore, I suspect that the characters "and Ru" were misprinted for "rushing and continuous" (Chuan Chuan) due to their visual similarity. It should be read as "Chuan Chuan." However, this long-standing error remains uncorrected. Why? Perhaps because "Chuan Chuan" has profound meaning, and mediocre editors mistakenly thought "Chuan Chuan" was wrong and changed it to "Ru," leading to blind acceptance and lack of scrutiny. Or perhaps because the character "Ru" has a specific pronunciation, and sages traditionally interpreted it by sound rather than as a pulse name, avoiding contradiction with pulse theory, hence no one corrected it? However, since the Ru pulse already exists, using the non-pulse-meaning "Ru" here causes confusion and is insufficient for teaching the world. After repeated deliberation, Peng believes it is best to replace it with "Chuan Chuan" from the *Nei Jing*. This not only avoids confusion with the Ru pulse but also better describes the concept of Stomach Qi (Stomach Energy) than the characters "Ru" and the other homophone, offering a more subtle and profound meaning.

The phrase "Right Chi Xiang Huo (Ministerial Fire) is judged together with Heart" is suspected to contain superfluous text. Both Chi positions belong to the Kidney region. The *Nei Jing* discusses left and right for the Zhong Fu Shang and Shang Fu Shang positions but specifically states for the Chi position: "The outer aspect of the Chi corresponds to the Kidney," without distinguishing left or right. This indicates that both Chi positions belong to the Kidney, a fixed location. Since the Right Chi also belongs to the Kidney, its pulse should similarly be Chen and Shi. If it were the same as the Heart, given that the Heart pulse described earlier is Fu (Floating), Da (Large), and San (Scattered), would the Kidney region also be Fu, Da, and San? Some argue that "Heart" is a typo for "Kidney," suggesting it should read "Right Chi Ministerial Fire is judged together with Kidney," which makes logical sense. However, Ministerial Fire resides centrally in the Mingmen (Gate of Life), neither leaning left nor right. It is merely a method of pulse diagnosis attached to the Right Chi. The pulse naturally prioritizes the Kidney, with Ministerial Fire as secondary. Reading it as "Right Chi Ministerial Fire is judged together with Kidney" results in inverted syntax and unclear subject-object relationships. It is better to read it directly as "Right Chi is also Kidney, Ministerial Fire is judged together [with it]." This clarifies that the Right Chi belongs to the Kidney region, and its pulse must be Chen, Shi, and Chuan Chuan like the Left Chi. One merely compares the size and strength (forceful or weak) to assess the waxing and waning of Ministerial Fire, hence the term "judged together."