Shantideva
Eighth century Indian Buddhist philosopher and bodhisattva who propounded the Prasangika Madhyamaka (Middle Way Consequence) view. Shantideva wrote the quintessential Mahayana text, A Guide to the Bodhisattva's Way of Life (Skt: Bodhicarayavatara; Tib: jang chub sem pä chö pa la jug pa).