Ecclesiastes 7:12

I first joined the Jehovah's Witnesses the Religion to learn about the Bible.  They have a book What Does the Bible Really Teach but experience teaches.  The Bible speaks.  So it is better to ask "what does the Bible really Say?".
I did not learn it there.  So now I am learning it at home.

The New World Translation (Bible) says at Ecclesiastes 7:12;

For wisdom is for a protection [the same as] money is for a protection; but the advantage of knowledge is that wisdom itself preserves alive it's owners.
That doesn't make sense does it?

They stole it from tradition (are you laughing?) Haha.

Here is proof:
New American Standard Bible (©1995)
For wisdom is protection just as money is protection, But the advantage of knowledge is that wisdom preserves the lives of its possessors.
King James Bible
For wisdom is a defence, and money is a defence: but the excellency of knowledge is, that wisdom giveth life to them that have it.  (They should have stuck with this one-but it's still not right).


The word translated "money" means "cost".  
So this is what I think it means:
Because wisdom and the cost of wisdom is protected, knowledge excels, then wisdom makes alive it's owner.