Conversation so far:
What did Roberto Mangabeira do in sense of academics?
The beginning of Unger's academic career began with the books Knowledge and Politics and Law in Modern Society.
Did he write these books, or how was he influenced by them?
published in 1975 and 1976 respectively.
These works led to the co-founding of Critical Legal Studies (CLS) with Duncan Kennedy and Morton Horwitz.
How did he continue with his academic career?
By the early 1980s, the CLS movement touched off a heated internal debate at Harvard, pitting the CLS scholars against the older, more traditional scholars.
Did he face any setbacks in his career?
CANNOTANSWER.
Are there any other interesting aspects about this article?
Throughout much of the 1980s, Unger worked on his magnum opus, Politics: A Work In Constructive Social Theory.

Question: Did he finish his magnum opus?
Self-contained rewrite: Did Roberto Mangabeira Unger finish his magnum opus?