It tells a short story with moral significance. Comparing two people's different personalities and different ways of handling, the outcome is different.

Developed means that things have been fully developed or have been fully developed. From the preface to drinking in Pengchi.

Both developed and developing countries are countries with relatively developed economies. Generally speaking, it refers to the 24 member countries participating in the Organization for Economic Cooperation and Development, among which the United States, Japan, Germany, Britain, France, Italy and Canada are the most developed.