The essence of teaching is to make learning contagious, to have one idea spark another.
If you can't make a mistake, you can't make anything.
I have discovered few learning disabled students in my three decades of teaching. I have, however, discovered many, many victims of teaching inabilities.
Excellence is not an act but a habit. The things you do the most are the things you will do best.
Once children learn how to learn, nothing is going to narrow their mind. The essence of teaching is to make learning contagious, to have one idea spark another.