What was the single most important influence on thomas jefferson's draft of the declaration of independence?

John Locke's Second Treatise on Government was the most imperative effect on Thomas Jefferson's draft of the Declaration of Independence. 
In the Second Treatise of Government, John Locke talks about men's turn from a condition of nature described by consummate opportunity and represented by motivation to a common government in which the expert is vested in an administrative and official power.