“A double rainbow had changed the course of my relationship with the fox. I had been jogging when I realised that he would live only a few years in this harsh country. At the time I believed that making an emotional investment in a short-lived creature was a fool's game. Before the jog ended, a rainbow appeared in front of me. One end of the rainbow slipped through an island of tall dead poplars drowning in gray sky, their crowns splitting and spraying into each other. I stopped. A second rainbow arched over the poplars. How many rainbows had I seen in this one valley? A hundred easy, and I always paused to watch. I realised that a fox, like a rainbow and every other gift from Nature, had an intrinsic value that was quite independent of its longevity. After that, whenever I questioned devoting so much time to an animal whose lifespan barely exceeded the blink of an eye, I remembered rainbows.”