US-based writer Liu Yung's essays Wanderlust and Everyone's Crying describe the mood of the empty nest: "When I was learning science as a child, the textbooks talked about animals migrating to forage for food and search for mates.
旅美作家劉墉就寫了〈總是愛飄泊〉、〈大家都在哭〉等文章，描述空巢心情：「小時候讀自然科，課本上說動物遷徙，是為了覓食、為了尋偶。