Obama's wish (ancient book)

Thousands of years ago, the great philosopher Mencius said,' A path through mountains will become a path in a short time if it is used, but it will be blocked by grass in the same short time if it is not used.' "(between the paths of mountains, the road is made of it; If you don't use it for a while, you will be at a loss. This enlightened heart is gone-"Mencius? Dedicated ").