Nagarjuna was an influential Indian philosopher and the founder of the Madhyamaka school of Mahayana Buddhism, which emphasizes the concept of emptiness. He lived around the 2nd century CE and is best known for his works that explore the nature of reality and the interdependence of all phenomena. His writings, particularly the Mulamadhyamakakarika, argue that all things lack inherent existence, leading to a deeper understanding of the nature of suffering and enlightenment. Nagarjuna's ideas have had a profound impact on Buddhist thought and practice, shaping the development of later Buddhist schools. His teachings encourage practitioners to transcend dualistic thinking and cultivate wisdom through the realization of emptiness. Today, Nagarjuna is regarded as one of the most important figures in Buddhist philosophy, influencing both Eastern and Western philosophical traditions.