I came across the following poem recently, and its simplicity but truths really struck me. I hope you can see the great truths in this too.
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.