The chief misery of the decline of the faculties, and a main cause of the irritability that often goes with it, is evidently the isolation, the lack of customary appreciation and influence, which only the rarest tact and thoughtfulness on the part of others can alleviate.
(Charles Horton Cooley (1864-1929), U.S. sociologist. Human Nature and the Social Order, ch. 6 (1902).)
Do not rely too much on isolation.... Oceans are not as wide as they used to be.
(Howard Koch (1901-1995), U.S. screenwriter. Michael Curtiz. Litvinov (Oscar Homolka), Mission to Moscow, speaking of American isolationism (1943).
Although in reality highly fictionalized, the film purports to be based on Ambassador Joseph E. Davies memoirs of the same title. Davies himself introduces the film in a prologue.)