This document discusses nationalism and patriotic duty from a chapter in a National Service Training Program. It defines nationalism as love and care for one's native land, and patriotism as a willingness to sacrifice for one's country. It describes how concepts like bayanihan (mutual assistance) demonstrate nationalism, and how nationalism and patriotism require understanding politics and the state. It argues these values will remain empty words if Filipinos do not learn and change inwardly to prioritize their nation over short-term interests.