The writings reevaluated as a "proto-Daoist" text is how many characters long? 
Neiye:  After the "Guanzi" political and philosophical compendium included the "Neiye" around the 2nd century BCE, it was seldom mentioned by Chinese scholars until the 20th century, when it was reevaluated as a "proto-Daoist" text that clearly influenced the "Daode jing", "Zhuangzi", and other classics. Guanzi (text):  At over 135,000 characters long, the "Guanzi" is one of the longest early Chinese philosophical texts.
i don't know