Why do you think the writings of Voltaire, Rousseau, and other philosophes influenced the members of the Third Estate more than those of the First and Second Estates

It should be noted that the first state was conformed by the clergy and the second state by the bourgeoisie, while the third state was the population without privileges, the majority bourgeoisie or the people, the theories of each of the philosophers mentioned, indicated that the population was singing legal and commercial rights and that he had to fight for them because they are the basis of the social and economic pyramid, so the third state had a broad influence of Voltaire and Rousseau