 The definivist further claims that like Euclidean axioms Hobbes did not view this axiom—the definition of ‘law of nature’—as requiring demonstration; instead, he derived the first law of nature from it and then derived the others one from another. Why is Hobbesian civil philosophy a demonstrable science on this view? Simply put, it is a demonstrable science because it follows the method of Euclidean geometry, viewed by Hobbes and others as the model of scientific knowledge on account of its clarity and  rigor.[11]