When I introduce google voice to my friends , they felt so amazed and can't wait to use it. 

I found so many things to learn and to understand. I didn't care anything else and just felt if one can keeping learning for his life in this kind of wonderful environment, that is enough.

When I add all these things together , I undertand why SH also shares time to read  Jobs. Both Jobs and he are committing to change the word. Not only them but all the people I have met here are creating  an atmosphere to promote people to change the world.

I still remember my feeling when I stood in front of SH's big house at night. This was my first time to have a dialogue with the beautiful sky so quietly after a long time of living in Chinese metropolis far from nature. All the stars were twinking. At that moment I felt the universe was so infinite and human life was so short. What do we want in our life?After we can support ourself, we will prove our existence and value by doing something good for others and for society.  This is not a slogan but reality here.
PS:
http://www.nasa.gov/mission_pages/NPP/news/earth-at-night.html
Not only I watch the sky at night