"Through all of summer and fall, through all the days of dwindling warmth and increasing chill, the noonday sun attained each day a lower height in the southern sky than the day before. It gave less heat each day, and there had to be the fear that, though it had not happened in previous years, in this year the sun would sink indefinitely [...] and leave the world to darkness, cold, and death. It never happened [...] and though the bitter winter lay ahead [...] the promise of eventual spring and rebirth was sure."
Isaac Asimov • The Roving Mind
