The declaration of independence establishes the belief that people should not be subject to an all-powerful government ruler. it claims that the source of a government's power comes from the people and that any legitimate government must be based on consent from those it governs. this concept is an illustration of which enlightenment philosopher's ideas? a. locke's theory of popular sovereignty b. hobbes's theory of the social contract c. voltaire's theory of the separation of church and state d. montesquieu's theory of the separation of powers