An excellent doctor successfully treated a sick child. A few days later, the grateful mother came to the physician.
"Doctor, I am very grateful for your service that no money can fully pay," she said. "But I hope you will accept as a token from me this purse which I myself have embroidered."
The physician replied very coldly:
"Madam, I am afraid to tell you that I do not accept any tokens. People have to pay in money not in gratitude for my services. Presents maintain friendship, but they do not maintain a family."
"What is your fee?" the woman inquired.
"Two hundred dollars," was the answer.
The woman opened the purse, and took from it five $100 bills. She put back three, handed two to the surprised physician, and left.