Answer
Natsume Sōseki is a pen name for Natsume Kin'nosuke. He was a Japanese author who is considered one of the most important writers in modern Japanese literature. Sōseki's work often deals with themes of alienation, isolation, and the search for meaning in life. His most famous works include "Kokoro" (1914), "Sanshirō" (1908), and "I Am a Cat" (1905).