Writing regularly to several people—a parent, a friend who’s moved to another coast, a daughter or son away at college—requires one to keep separate mental ledgers, storing up the weather or the idle thoughts or the disasters we need to pass on. We’re always getting ready to write. The letters out and back become a correspondence, and mysteriously take on a tone of their own: some rambly and comfortably boring; others cool and funny; some financial; some confessional. They stick in the mind and seem worth the trouble.
–from "Life and Letters" by Roger Angell for The New Yorker