This document provides information on several important Filipino social thinkers and their philosophies. It discusses Jose Rizal's views on using intelligence and reason to solve problems and reform the country. Andres Bonifacio founded the Katipunan secret society and believed revolution was justified when the social contract was broken. Emilio Jacinto advocated for freedom of thought and reason and believed revolution was necessary to overthrow colonial rule. Manuel Quezon believed in political pragmatism and operated for Philippine independence within the constraints of the time.