In twenty years' time I'll be eighty-three, just an old man with a stick moving like a sloth bear. While I'm alive, I am fully committed to autonomy, and I am the person who can persuade the Tibetan people to accept it.
Material objects give rise to physical happiness, while spiritual development gives rise to mental happiness. Since we experience both physical and mental happiness, we need both material and spiritual development. This is why, for our own good and that of society we need to balance material progress with inner development.