George P.V. posted:

The Persian Proverb

He who knows not,
And knows not that he knows not,
Is a fool, shun him.

He who knows not,
And knows that he knows not,
Is a child, teach him.

He who knows,
And knows not that he knows,
Is asleep, wake him.

He who knows,
And knows that he knows,
Is wise, follow him.

- Author Unknown