"sect. 2. and whereas the condition of those persons who have heretofore been denominated negro and mulatto slaves, has been attended with circumstances which not only deprived them of the common blessings that they were by nature entitled to, but has cast them into the deepest afflictions, by an unnatural separation and sale of husband and wife from each other and from their children; ..in justice therefore to persons so unhappily circumstanced..and also in grateful commemoration of our own happy deliverance from that state of unconditional submission to which we were doomed by the tyranny of britain…that all persons, as well negroes and mulattoes as others, who shall be born within this state from and after the passing of this act, shall not be deemed and considered as servants for life, or slaves." - excerpt from the "act for the gradual abolition of slavery," pennsylvania 1780 which enlightened thinker's ideas can clearly be seen in this excerpt? a) john locke b) thomas paine c) thomas hobbes d) jean-jacque rousseau