To success in any fields. nothing is easily. We need improve about all aspects, especially, the communicative skill, I remember, when I work in some companies, I try to friendly with other people, but it is not enough, we must which cases we need smiles, which cases we need silent. Overall, everyday we should spend a lot time to read news or courses help to provide knowledge. It sure is useful in the future. Sometime, we should stop to think about life to give experiments for yourself. the end.. tomorrow the sky will light again.