The Seven Principles for Making Marriage WorkAccording to most relationship books, the key to a solid marriage is communication, communication, communication. Phooey, says John Gottman, Ph.D., author of the much-lauded Why Marriages Succeed or Fail. There's much more to a solid, "emotionally intelligent" marriage than sharing every feeling and thought, he points out--though most couples therapists ineffectively (and expensively) harp on these concepts.