If a man empties his purse into his head, no man can take it away from him. An investment in knowledge always pays the best interest.

For the best return on your money, pour your purse into your head.

Be very, very careful what you put into that head, because you will never, ever get it out.

No one can steal your peace of mind unless you let them.

Once you know about a work of mine you own it. There's no way I can climb inside somebody's head and remove it.

Put not your trust in money, but put your money in trust.

Your mind will give back exactly what you put into it.

My father invested his money so securely in the banking business that he was never able to get any of it out again.

It’s what is in your head that determines what is in your hands. Money is only an idea.

You just hold your head high and keep those fists down. No matter what anybody says to you, don't you let 'em get your goat. Try fightin' with your head for a change.
-Atticus Finch

If you place your head in a lion's mouth, then you cannot complain one day if he happens to bite it off.

Tis in my memory lock'd,
And you yourself shall keep the key of it.

What you have in your head, put down on paper. The head is a fragile vessel.

What you can and can’t afford is all in your mind.