Frankly speaking, I am fond of this course! Since I think I did met such a good professor who could tell student something complicated in quite concise and clear way. Actually in physics the most important thing is to understand the basic concepts, which are always in simple concise but elegant form. Sometimes the simplest may be the hardest underlying the most profound truth. Also I appreciate that you were doing quite a good job when you often told us to think one more time whether it is reasonable before we accept a conclusion. This is the right way to learn. It is always difficult of attainment for one to stick to one's own idea when confronting the pressure from authorities, or in another word, to be confident. As the only foreign student in class, maybe it is not unfair to force other Japanese student to listen to lectures in English. However, I have to say that your English is easy to understand, and one of my Japanese friends who also took this course said so. To my opinion language itself as the same as the capability of mathematics though maybe the latter is more important for people who learn science, however, one has to communicate with others through talking, gather information by reading, and express own thoughts whatever it is by writing, for all of which one has to make sense in order to let other understand more easily. That is why I am studying Japanes so hard, just as to communicate with others more conveniently since I am now living in Japan. For the assignment, somehow I prefer the form of report instead of talking test(maybe I took too many tests). After tests, I will forget everything I learn, but writing a report forces me to review the thing I have learned and search for contents I need to investigate. The whole process is a combination of new discovery and re-learning. In one word, I was happy to take this course!