1. Time runs fast, everyone need to select a destination for their life in the future, who must make most of their time. or will be loser.
2. I exercise the PCB board six hours following the teaching movie. I found that i am strange for its rules, I didn't thought by myself. I must make plan for studying it and ask some question.
3. You will be loose and lazy when you are not sure do what something and abored in memory. don't look up past and do save now.
