A student of mine asked me how old I was and asked to know what university I graduated from. She said I looked 24ish, which elated me because almost all the students had told me that I looked much much older than I really was. I didn’t tell her exactly how old I was or the name of the university because I believe that neither have anything to do with the quality of my lessons. So do the other managers of the cram school. But I encountered this sentence today: You shouldn’t so easily trust a man of whose past you know nothing. If a teacher must be trustworthy, and if the sentence has some truth in it, an ideal teacher must make his past known to the students. What should I do? I don’t want to act my age or behave as a man who has graduated from a certain university.