Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Shadows of Logic

Beautifully discursive and masterfully styled, The Plurality Of Worlds Of Lewis takes David Lewis' turgid, and yet very dry, philosphical treatise on possibility and maps it onto a space convoluted by Roubaud's own pungent sorrow. It is as if the widower has looked at a map, recognized the impossibility of finding his beloved in this mountainous region, and yet, he goes to look, because in the shadows the boundary between searching and finding can be perhaps blurred.