What is enthralling and illuminating about The Metaphysical Club is its portraits of individuals and their milieus. Menand is wonderfully deft at evoking a climate of ideas or a cultural sensibility, embodying it in a character, and moving his characters into and out of one another's lives. What might have been a jumble of intellectual movements and colorful minor figures (...) is instead a subtle weave of entertaining narrative and astute interpretation.