Principles of Freedom by Terence MacSwiney is a significant work in political philosophy that addresses the concepts of freedom and liberty within the context of Irish nationalism. MacSwiney, an influential figure in the Irish independence movement, explores themes of self-determination and national independence, advocating for the civil rights and social justice of oppressed peoples. His work is a passionate critique of colonialism and an exploration of republican ideals, offering a theoretical framework for resistance and protest against imperial rule. Set against the backdrop of early 20th-century Ireland, the book provides insight into MacSwiney's political activism and ideological principles. Through his writing, MacSwiney articulates a vision for a free and just society, emphasizing the importance of political theory in shaping the struggle for national independence. Principles of Freedom remains a vital text for understanding the intersections of political theory, activism, and the quest for self-determination.