October 9 is World Post Day. On this day each year, the establishment of the Universal Postal Union in 1874 is celebrated. It’s also an occasion to promote letter-writing. With electronic communication the most popular way to stay in touch, letter-writing is a dying art. And yet, letters don’t deserve to die. A serious writer of letters makes an effort that a person sending an email does not. It’s a civilized, sociable act that is deeply respectful of the recipient (接收者).