For some it might be “I had some inspiriting teachers and want to hand on that inspiration”.

I had a conversation with a fellow student in university who studied to become a teacher and talked about a math teacher who really made her appreciate the subject. I said I also had a very good math teacher, even tho I always liked math and was bored before he managed to individualize the tasks and gave me harder ones that challenged me. Later we realized we come from the same town, went to the same school and talked about the same teacher.

I hope she is a good and inspiriting teacher by now