Instruct: Classify the given review into positive or negative sentiment.
Query: Fine, but lacking in depth

Saul Bellow's slim eulogy to the late Allen Bloom in novel form has its moments, but it is ultimately a superficial achievement. Banking on the colorful eccentricities of the late professor of philosophy, Bellow is content to retreat from anything resembling a story. I preferred the intricate weavings of philosophy, art, and life that Bellow was able to create and Herzog, whereas in Ravelstein he takes it for granted that the subject is supremely interesting to the reader. Still, I admit that Bellow is quite at home in the elite intellectual circles that Bloom liked to frequent at the University of Chicago, and his pedantic monologues about the ancient Greeks, Rousseau, and Machiavelli have a certain amount of resonance. But this is still a well-written puff piece at the end of the day.