You don't know who you are teaching, so you'd better do it right.
30 years ago, I met my first music teachers, one was at music school, and the other one at elementary school. I don't know if they were dating yet, but they were eventually husband and wife. He taught me to play the cuatro (Venezuelan instrument) and she was a gifted singer, who introduced me to choral music. They set my music foundations. My ear was starting to learn even before I could write. They were my teachers for years, probably until I started high school. But they never stopped caring for me.
They didn't know I'd become a music teacher just like them. But they were very happy when they found out about my career choice.
They didn't know I would come back to our hometown to teach at high school, and I bet they wouldn't have guessed that I would happen to be their daughter's teacher 20 years later.
How it felt? It was breathtaking. I kept thinking, that they taught me everything so generously and now it was my turn to pay back, returning all that love to their most precious masterpiece.
So that makes me think...You don't really know how tall the plant is going to be. You don't know if your student is going to be the next Einstein, or someone who would resent you for life, so you must do your absolute best every single time.
Most importantly, you might be teaching the person that is going to teach ( and hopefully inspire) your own kids. So what do you want that person to be like?
Steemian 
So, who would you trust with your kid's education? You'd better start teaching all your students as potential candidates for that responsibility. You never know.
