Herzog

As most of you are probably aware, Saul Bellow died a few weeks ago. The event sent me back to re-read Herzog. Herzog is one of the few books written by a contemporary of mine that sits in my "top 20". With all of his learning, the professor finds, when life turns nasty, he hasn't really learned anything helpful at all. He has to return to solitude and live amongst the weeds, a Nietzschean-Zarathustraian theme, as well as a finish similar to the same.

What did he learn about ambiguity, and how did he learn it?