" These little hurts were like little pets or potted plants you were abruptly given the care of, needing to be fed or walked or watered. As you pass the half-century, the flesh, the coating on the person, begins to attenuate. And the world is full of blades and spikes. For a year or two your hands are nicked and scraped as a schoolboy's knee. Then you learn to protect yourself. This is what you'll go on doing until, near the end, you are doing nothing else--just protecting yourself. And while you are learning how to do that, a doorkey is a doornail, and the flap of the letterbox is a meat-slicer, and the very air is full of spikes and blades. "

― Martin Amis , The Pregnant Widow