Love, being an extremely exacting usurer (a sense of exorbitant profit, spiritually, by an exchange of hearts, being at the bottom of pure passions, … - Thomas Hardy

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Love, being an extremely exacting usurer (a sense of exorbitant profit, spiritually, by an exchange of hearts, being at the bottom of pure passions, as that of exorbitant profit, bodily or materially, is at the bottom of those of lower atmosphere), every morning Oak's feelings were as sensitive as the money-market in calculations upon his chances.