Dear teachers and students,

I am Li Hengchen, a third-year postgraduate of the Tianjin International Engineering Institute, and I am honored to introduce my supervisor - Prof. He Li.

We are eternally indebted to our teacher, who influenced us subliminally and profoundly

Prof. He Li, an instructor with humanistic concern, always puts students' needs before his. Prof. He often conveys care to us in various ways, creating a welcoming, home-away-from-home feel in our campus lives. Omicron Covid-19 outbreak in Tianjin trapped all the students in the subject research group in the school. Prof. He made an informed decision to resolutely stayed in school to accompany us. Thanks to his selflessness, our subject research group proceeded with its work orderly despite the pandemic. In this trying time, he spearheads efforts to strengthen communication and exchanges with us, cares about our scientific research, living conditions, and mental state, and attentively guides our scientific research. He also keeps abreast of our scientific research progress and academic problems in various ways and discusses projects with and assigns tasks to us via our WeChat group. In particular, he often gives more tailored guidance for some postgraduates ready to graduate or at a pivotal point in their learning and scientific research to get them beyond the obstacles posed by the pandemic.

In addition, he is very involved in a number of activities, including "Technology Empowerment, Concentric Battle" Tianjin University online lecture, which has enriched our on-campus learning and living arrangements and received excellent responses and effects throughout the school.

Knowledgeable teachers are readily accessible, which is not the case for virtuous ones

With a high sense of responsibility, Prof. He Li is insatiable in learning and tireless in teaching. He is a supervisor in my study and my life. He is also the guide for my growth and success. He has set a good role model for us by being a paragon of virtue and learning. During the pandemic, he highly praised the volunteer students in the group and called on us to actively be a part of the school's pandemic prevention and control efforts. Moreover, he volunteered to escort students out of school and guide us to fulfill our legal obligations and social responsibilities consciously, do more to unite people under the same cause, soothe their hearts, and contribute to the whole society's anti-pandemic efforts. Under the influence of his exemplary acts, all the students in the subject research group actively participated in the volunteer activities arranged by the school and made a modest contribution to the school's anti-pandemic prevention efforts.

With the pandemic situation in Tianjin looking up, I firmly believe that under the Party Central Committee's strong leadership, the school's teachers and students will join efforts in "concentrating on academics and fighting the pandemic" to triumph in this brutal anti-pandemic battle.