Read this selection from "What I Hope to Leave Behind." A man said to me recently, "I would like before I die to live in a community where no individual has an income that could not provide his family with the ordinary comforts and pleasures of life, and where no individual has an income so large that he did not have to think about his expenditures, and where the spread between is not so great but that the essentials of life may lie within the possession of all concerned. There could be no give and take in many ways for pleasure, but there need be no acceptance of charity." What is the main idea of this selection?