I remember this conversation, many years ago:
Mr. Ok: you need to convince them.
Me: but they won’t do it. They just don’t want to do it.
Mr. Ok: let them understand, show them what the problems are, help them see.
Me: we tried and it’s not working! They just trust themselves and their ideas.
Mr. Ok: then make them get to that idea. Help them understand and create the right idea by themselves
Me: I don’t want to manipulate them!
Mr. Ok: you will not manipulate them. You will not lie to them, you will tell the truth. You will help them see, for their own good, not for yours. This is not manipulation.
Still valid today 🙂