1
Knowing something is nothing.
Everybody knows something.
Being able to present clearly what one knows so others could understand is something.

When I teach, I make complicated things simple and difficult things easy.
If nothing else, I'm good teacher material.
Not just good, but excellent.
I deliver, and I deliver well.

2
Being able to talk in an intellectual way is rare among most people.
So many educated adults I met, here and overseas, are simply not able to discuss a subject, topic or issue intellectually, rationally or even logically.
It gets worse when it comes to religion, politics, and worst of all, simple and straightforward history.

I, on the contrary, can.