Discrimination and help strangers

After study these two units. I have learned some thing from them. In my opinion Discriminations are effecting people to help the strangers.so I decide to write the together. And The song of 2008 Beijing Olympic opening ceremony well explained it.
The song for the opening cermony is called you and me this song were present that all the people around the world are same , we are the big family, we have to be kind for each other. There are the words of the song
You and me
From one world
We are family
Travel dream
A thousand miles Meeting in Beijing
Come together
Put your hand in mine
You and me
From one world
We are family if some one wants to listen this song check this out
http://www.youtube.com/watch?v=WGdWWx3bRLo
this song makes me think. If we meet every one with out discrimination as our family ,as our brothers and sisters what a wonderful world we're going to have.
If you got help from the stranger but not able to requite them, even no time to say thank you, so lets help others who need your help to requite that people who helped you before.!
PS: hope Canadian Olympic team can bring some gold medal back!!!^_^
Also Fighting!!!!Chinese team!!!