"Secondly it seem'd to me no less unconceivable, whence that dismal ψυχομαχια or intestin war which every Man too frequently feels within himself, and whereof even St. Paul himself so sadly complained, when (in Epist. ad Roman. cap. 3.) he cries out, video aliam legem in membris meis repugnantem legi mentis meae; should arise, if not from a Duumvirate as it were of Rulers contending for superiority within us, and inclining us two contrary ways at once."
— Charleton, Walter (1620-1707)