Section 123. If man in the state of nature be so free, as has been said; if he be absolute lord of his own person and possessions, equal to the greatest, and subject to nobody, why will he part with his freedom? why will he give up his empire, and subject himself to the dominion and control of any other power? To which it is obvious to answer, that though in the state of nature he hath such a right, yet the enjoyment of it is very uncertain, and constantly exposed to the invasion of others; for all being kings as much as he, every man his equal, and the greater part no strict observers of equity and justice, the enjoyment of the property he has in this state is very unsafe, very unsecure. This makes him willing to quit a condition, which, however free, is full of fears and continual dangers; and it is not without reason, that he seeks out, and is willing to join in society with others, who are already united, or have a mind to unite, for the mutual preservation of their lives, liberties, and estates, which I call by the general name, property.

Section 124. The great and chief end, therefore, of men’s uniting into commonwealths, and putting themselves under government, is the preservation of their property. To which in the state of nature there are many things wanting.

First, There wants an established, settled, known law, received and allowed by common consent to be the standard of right and wrong, and the common measure to decide all controversies between them: for though the law of nature be plain and intelligible to all rational creatures; yet men being biassed by their interest, as well as ignorant for want of studying it, are not apt to allow of it as a law binding to them in the application of it to their particular cases.

Source: John Locke, Two Treatises on Government (London: C. and J. Rivington, 1824), 203–4.