 This view places Suárez very close to the social contract school. It is a central tenet of this school that the citizens contract an obligation towards the political authority because they have given express, tacit, or hypothetical consent to it. Some of Suárez's interpreters have resisted this conclusion, arguing that, for him, although consent creates the state, it does not directly cause political obligation. In this interpretation, just as the right of a person to rule over his body “naturally results” (to use Suárez's phrase) from his being a person and is independent from the means by which he was generated (so that, say, an in vitro generated human being would also have these rights), so the right of the ruler(s) to rule over the city naturally flows from the fact that the city is a city, independently from the consent that generated it.