Four types of people

There is an old dictum to knowledge. It goes something like this:

There are four types of people:

1. The one who doesn’t know, and doesn’t know that he doesn’t know. He is a fool–shun him.

2. The one who doesn’t know, but knows that he doesn’t know. He is a student–help him learn.

3. The one who knows, but doesn’t know that he knows. He is an unenlightened person–enlighten him.

4. The one who knows and knows that he knows. He is a wise man–follow him.