Final answer:
The provided excerpts do not contain information regarding Bullock or his interpretation of a motto for the book of Proverbs. Without the appropriate references, it is impossible to accurately respond to the inquiry about what Bullock called the "motto" of the book of Proverbs.
Step-by-step explanation:
The student is inquiring about what Bullock referred to as the "motto" of the book of Proverbs. Unfortunately, the provided excerpts do not pertain to Bullock or his definition of a motto for the book of Proverbs, as they seem to be quotes from Confucius and unrelated to the subject. To accurately answer What did Bullock call the "motto" of the book of Proverbs?, one would need to reference works or statements by Bullock pertaining specifically to the book of Proverbs. Without the correct textual reference, it is not possible to provide an accurate or reliable response to that inquiry.