The first reason still holds true. Maximizing economic, social, and cultural contact between rich and poor remains both the best way to aid the flow of knowledge and the last best hope for rapid world development.
第一条理由仍然是成立的。使富国和穷国之间的经济、社会和文化联系最大化不仅是促进知识流动的最佳方式，也是促使全世界快速发展的最后希望。