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In page Jack London:

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During the marriage, London continued his friendship with Anna Strunsky, co-authoring The Kempton-Wace Letters, an epistolary novel contrasting two philosophies of love. Anna, writing "Dane Kempton's" letters, arguing for a romantic view of marriage, while London, writing "Herbert Wace's" letters, argued for a scientific view, based on Darwinism and eugenics. In the novel, his fictional character contrasted two women he had known.[citation needed]