Arthur Schopenhauer,
The World as Will and Representation…
“ Such a man, who, after many bitter struggles with his own nature, has finally conquered entirely, continues to exist only as a pure, knowing being, the undimmed mirror of the world. Nothing can trouble him more, nothing can move him, for he has cut all the thousand cords of will which hold us bound to the world, and, as desire, fear, envy, anger, drag us hither and thither in constant pain. ”
