respectively, the 6th, 9th, and 11th centuries: Tì-ni-đa-lưu-chi (S. Vinītaruci, C. Piniduoliuzhi 毘尼多流支, a South Indian Buddhist monk who lived in China for seven years), Vô Ngôn Thông (C. Wu yantong 無言通), and Thảo Đường (C. Caotang 草堂)...