This article proposes that Shakespeare uses twinship and marriage in The Comedy of Errors to reflect on the importance of individuality and interrelation in the formation of identity. Specifically, this article shows how The Comedy of Errors sets the twin relation against the marital relation, ultimately implying that marriage—imperfect, everyday marriage—has as much subjective impact as the extraordinary bond between identical twins. As amazing as it might be to see two persons sharing "one face, one voice, one habit," The Comedy of Errors suggests that the twin relation does not surpass in significance the equally marvelous relation whereby husband and wife become "one flesh."
Lehnhof, Kent R. "Twinship and Marriage in The Comedy of Errors." SEL Studies in English Literature 1500-1900, vol. 60 no. 2, 2020, p. 277-298. https://doi.org/10.1353/sel.2020.0012
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