" I think it’s possible to learn. The problem is that we learn so damned slowly, so that by the time you’ve realized something, it’s too late. For example, someone one you love might ask you for a favor, an act of love. Like helping him die. Which you say no to because you haven’t learned, you haven’t had the insight. When you do finally see the light, it’s too late. - Harry Hole "

― Jo Nesbø , The Leopard (Harry Hole, #8)