The king and the dervish
18. Games like baseball are good for boys. There are also plenty of pleasant outdoor games for girls. When no game can be played, a brisk walk in the open air is quite as good. Brisk walking is one of the easiest and best of exercises for both boys and girls.
19. But there are some things we should avoid when taking exercise. We should not work or play too long without resting. We should not try to do things that are beyond our strength. When exercise is too violent, it does harm rather than good.
20. An eastern king, who had become pale and ill, asked a wise dervish what medicine he should take.
The dervish, knowing that it was exercise alone which the idle king needed, said: "I will bring you to-morrow a remedy which will cure your disease."
21. The next day the dervish appeared before the king.
"Here," said he, "is a ball which holds the medicine that will cure you. Take it into your garden every day and knock it about till you perspire freely. This will make the medicine take effect."
The king did as the dervish told him, and the exercise in the fresh air soon made him well.