Answer:
A person's greatest asset.
It is in every mountain, it's not in any hill, it's not in all the world, and yet it's in the mill.
Turns us on our backs, and open up our stomachs. You will be the wisest of men though at start a lummox.
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How can a pants pocket be empty and still have something in it?
What is big and yellow and comes in the morning, to brighten mom's day?
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