The Washington coin is already hard to find: try to pick one of these up.
Here're a few good Adams quotes:
We have no government armed with power capable of contending with human passions unbridled by morality and religion. Avarice, ambition, revenge or gallantry would break the strongest cords of our Constitution as a whale goes through a net. Our Constitution is designed only for a moral and religious people. It is wholly inadequate for any other.
Facts are stubborn things; and whatever may be our wishes, our inclinations, or the dictates of our passion, they cannot alter the state of facts and evidence.
Our obligations to our country never cease but with our lives.
No man who ever held the office of president would congratulate a friend on obtaining it.
In my many years I have come to a conclusion that one useless man is a shame, two is a law firm, and three or more is a congress.