Recently my several friends showed their study status in wechat ,such as cooking ;and how to judge the cat is male or female,; and skill of flower -arranging ..... I am admire them who has passion .courage and patience to study this things . maybe you think this things is not use in your work , but if you just do one things repeatly every day , your thinking and activity will be fixed by one things , if you always experienced more and more different things to refresh your thought ,in future your energy and looks are magnificent , even thought these things is not useful for your daily work.  but at least it is a good  experience in your life。one of the most  beautiful qualities of ture experience  is to understand and to be understand .