I wonder how many articles on earth are writen by yourself? For those which were published on sciencenet.cn, I don"t think there is any necessity to repost it on your blog. I mean, of course, it should be ok that you share someone else"s vision and experience as long as it helps, however, you should have your personal opinion. Otherwise, I don"t understand why you need a blog? 博主回复:Thanks for your comment. I like being here, and to preserve something important on my own blog. Forgive my selfishness. Thank you!