Samuel P. Huntington was a major figure in modern political science because he always asked big questions, and because he made controversial arguments that forced his readers to think. His relentless curiosity, commitment to tackling important real-world issues, and intellectual fearlessness were both inspiring and daunting. That rare combination of traits may explain why he is the only foreign-policy intellectual whose fan club includes realists, liberals, and neoconservatives.
Walt, Stephen. "Samuel Huntington's Legacy: Day 2." Web Exclusive. Foreign Policy. January 2009.