About the author
Dong Gu: little is known with certainty about his life, official career, or dates of birth and death. Public records are limited, and his true identity remains to be clarified. All that is known at present is that a single work survives under his name, titled Bilizacun (Miscellaneous Notes from Bili). The book is generally classified under Eastern philosophy; its contents mostly concern miscellaneous notes and textual investigations together with discussions of philosophical principles, drawing on old accounts and set down in a random, note-like manner. The style is plain and unadorned, not relying on rhetorical flourish, yet traces of reflection appear from entry to entry. Owing to the scarcity of relevant sources, the circumstances of the book's composition, its transmission, and later assessments of it are difficult to describe in detail, and the author's scholarly background and intellectual development cannot be reliably ascertained. Readers wishing to know Dong Gu can for now rely mainly on the text of Bilizacun itself, indirectly sensing his scholarly interests and writing style from the questions he addresses, the range of materials he draws on, and his manner of discussion.