The jet stream runs in circles too—the natural world, it appears, runs in circles. So do we. What goes up comes down. What goes down comes up again. This is the meaning of vanity. Spinning wheels got to go round, as a fellow on the radio put it. A man may look in vain for something new in the weather. Water evaporates, rains, evaporates, and rains again, and the ocean never fills up. This whole world is a gigantic chalkboard illustration for us. Look at it as Solomon did, and learn a wearisome lesson.
