"족류가 같으면 언어가 같고 환경[수토]이 같고 의복과 거처가 같고 수렵하는 풍습이 같다"고 강조했다.
"If the foot is the exact same, the language is the identical, the environment [the soil] could be the same, the clothing and the dwelling are the same, and the searching customs are the same," he emphasized.