Open-minded, idiom. Modesty is like a deep valley. It is described as very modest, able to accommodate others and accept opinions. Laozi: "The ancient wise men are subtle and profound ... If you are involved in Sichuan in winter, you will still be afraid of your neighbors, if you are a guest, if you put ice, if you are indifferent, if you are simple, if you are broad, if you are muddy." Dunxi is simple, while Kuang is a valley. "