翻译When man is happy,he is in harmony with himself and his environment.

It is my pleasure to recommend my student XXX to you. In the first year of university, as a freshman, he was a little bit blundering and immature. After these years’ study and exercise, he has become confident and steady, especially a few months ago when he told me that he decided to further study abroad. It is unexpected for me but meanwhile I am glad. His courage deserves admiration and such progress is pleasing that he has courage to study in a non-mother tongue environment. During these three years, I can see his every effort and improvement. Prior to carrying out the work, he always makes plan and pays attention to details. He has the spirit of challenging and would like to listen to the others’ opinions and suggestions therefore he gets along well with other people. However, sometimes his subjective consciousness tends to be strong. It may have impact on the future study. Hopefully he will improve himself at this aspect.
As his teacher, I believe he is capable to face the future study and work and best wishes for him.

当一个人开心时，他和他周边的环境和谐共鸣

当一个人很快乐的时候,他便处在一种自身与环境的和谐之中.

当人快乐时，他自身是和谐的，与周围的环境也是和谐的。