What you have written is wonderful and what every person should know and apply and I am sure you will be able to teach all this to your nephew in person, face to face, your actions are also examples for him and he will know how to see them. He has a great uncle!
Wise words and quality teaching that's what I read.
I'd like to think everyone could come up with their own list as I have.
I hope so, but you know there are people who live in networks, zombies....
I don't have children or nieces and nephews but I have had people to whom I have passed on my teachings even though they are not children.
You know, there is a principle that says: when the pupil is ready, the teacher comes. You will be a good teacher. You are already a good teacher by your deeds.