 A virtue of the definitivist view is that it takes seriously Hobbes’ claim that civil philosophy is demonstrable. However, a difficulty faced by the definitivist view, along with any other that understands Hobbes as drawing inspiration from Euclid, is that Hobbes himself harshly criticized Euclidean definitions, arguing that Euclid’s definitions “ought not be numbered among the principles of geometry” because they did not contain the causes of what was to be constructed (EW VII.184). Furthermore, Hobbes criticized the nature of the objects of Euclidean geometry. For example, Hobbes argued against understanding lines as being without breadth since there are no such bodies in nature (EW VII.202). Additionally, Hobbes himself did not ground his own geometry in undemonstrated axioms and held that even Euclidean axioms needed to be demonstrated (OL I.72; OL I.119).