G. K. C. on cosmopolitanism

He who is homesick does not desire houses or even homes. He who is lovesick does not want to see all the women with whom he might have fallen in love. Only he who is sea-sick, perhaps, may be said to have a cosmopolitan craving for all lands or any kind of land. And this is probably why sea-sickness, like cosmopolitanism, has never yet been a high inspiration to song.

—G. K. Chesterton, Fancies Versus Fads