小笠原流 (Ogasawara-ryū) is a traditional Japanese school of etiquette and manners, founded in the early 17th century by 小笠原忠真 (Ogasawara Tadamasa). It emphasizes the importance of proper behavior in social situations, including dining, communication, and ceremonial practices. The teachings are rooted in the principles of respect, harmony, and mindfulness. The school has influenced various aspects of Japanese culture, including the art of tea ceremony and traditional arts. Today, 小笠原流 continues to be practiced and taught, preserving its historical significance while adapting to modern society's needs.