There is nothing more natural than to consider everything as starting from oneself, chosen as the center of the world; one finds oneself thus capable of condemning the world without even wanting to hear its deceitful chatter.
I don't subscribe to anything. I sit there and I try to think about what seems honest to me.
I think that the only way to teach is by example, as children will more easily follow what they see you do than what you tell them to do.