I watched some TV talk show. A poor boy who was accepted The Princeton University appeared as guest. His father lost job at the IMF period, so his family was embrassed affair from time. However, he study hard by himself, so he can enter The Princeton University. Almost his says are very important to me. Most of important one is about traning of concentration. If you improve your concentration, first you need a stopwatch. You hold the clock on 10 minutes. You have to no think other superflous thinking. You promise yourself to concentrate only your study. You maintain the promise about one week. You will soon get use to it. Then, you add to the time as 20 minutes. Next time 30 minutes, and 40 minutes… You add to the promise time more and more. He said that oneday you can concentrate a 1 hour or more that. I will try out the method. It’s very useful for many students. Have a try the method you guys. Let’s go The Princeton University. We can do it, too!!