Natural-born citizens, are those born in the count...
Natural-born citizens, are those born in the country, of parents who are citizens. As the society cannot exist and perpetuate itself otherwise than by the children of the citizens, those children naturally follow the condition of their fathers, and succeed to all their rights. The society is supposed to desire this, in consequence of what it owes to its own preservation; and it is presumed, as matter of course, that each citizen, on entering into society, reserves to his children the right of becoming members of it. The country of the fathers is therefore that of the children; and these become true citizens merely by their tacit consent. We shall soon see whether, on their coming to the years of discretion, they may renounce their right, and what they owe to the society in which they were born. I say, that, in order to be of the country, it is necessary that a person be born of a father who is a citizen; for, if he is born there of a foreigner, it will be only the place of his birth, and not his country.
PRINCIPLES OF THE LAW OF NATURE APPLIED TO THE CONDUCT AND AFFAIRS OF
NATIONS AND SOVEREIGNS. The Law of Nations served as the precedent for statutory doctrine in the composition of the U.S. Constitution. Denial of this reveals irreparable ignorance and ideological dissonance.
Source: http://thedailypen.blogspot.com/2012/02/vital-records-indicate-obama-not-born_29.html?showComment=1330734326285#c5826295672437186874