回複：You are right to some extent. In the ideal world,

The world is not perfect and will probably never be. Martin Luther king's dream is still not fully realized after nearly a half century . Discrimination against other races, religions, culture, is still common. As you said, that's why we still have wars. Years ago I saw with my own eyes how the cab drivers in Guangzhou refused to take black people.

But this is just individual case, no longer a major trend. The trend of the modern world today is how to be an international person. An internaitonal person has to open up his mind and learn to avoid prejudice.