I was pleased to be able to answer him directly, “I don’t know” I said. :: Mark Twain
*nichole
I didn’t know that quote.
In today’s world, everyone has all the answers. With the internet so accessible everyone is a doctor, everyone is a lawyer… It is quite refreshing to hear “I don’t know”.
[QUOTE=Nichole;28051]I was pleased to be able to answer him directly, “I don’t know” I said. :: Mark Twain
*nichole[/QUOTE]
Beautifully simple.
Simple “I don’t know” sounds too simple 
I like this quotation
“Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.”
Martin Luther King Jr.
The only true wisdom is in knowing you know nothing.
—Socrates
The key to wisdom is knowing all the right questions.
—John A. Simone, Sr
There is no shame in not knowing; the shame lies in not finding out.
—Russian Proverb
If you don’t know where you’re going, any road will take you there…
----George Harrison
Many men go fishing all of their lives without knowing it is not fish they are after.
—Henry David Thoreau
And this one just because it is from Mark Twain and I like it
Patriot: the person who can holler the loudest without knowing what he is hollering about.
—Mark Twain quotes