Letters / Perseverance, sincerity and thirst for knowledge have always been the hallmark of his personality. [4]

I accept all the observations, I admit that I've made the letter on the run and I've not paid a proper attention.
Thanks a lot for reviewing it.

To Whom It May Concern,

It is my great pleasure and privilege to write this letter to recommend X for the Master program in Energy Engineering at [...]. I first met x two years ago during the Electrotechnical Engineering laboratory classes that I am coordinating at X.

X showed a great interest to studying in my class. He asked everything what was not clear enough for him and we always fully clarified the presented principles, basically because he has a logical, math oriented mind. His alertness in the classroom and his involvement in practical experiments were indicative of his abiding interest in the subject. He was dedicated to his assignments and finished them on time.

He has excellent social skills and is greatly appreciated by Faculty members and students alike. He is able to work independently, as well as in teams to responsibly arrive at balanced conclusions.

With full confidence in his abilities, I strongly recommend X for his studies in your esteemed University, and with absolutely no reservation, I believe he is an excellent choice for your Master program in Energy Engineering