Recognizing Ignorance

Let's try this:

If you have never changed your mind about some fundamental thing in your belief system, if you have never questioned it's basics, and if you have no wish to do so, then you are very likely ignorant.

How about going out and finding someone who, in your opinion, believes, assumes, or considers certain things very strongly and very differently from what you believe. Then just have a basic honest conversation.

That is how we can all build positive tolerance and unify.