Cyrus did not think much of the suggestion; he replied that they might act upon it if they pleased, but added the warning that, if they did so, they must prepare themselves to rule no longer, but to be ruled by others. 'Soft countries,' he said 'breed soft men. It is not the property of any one soil to produce fine fruits and good soldiers too.' The Persians had to admit that this was true and that Cyrus was wiser than they; so they left him, and chose to live in a rugged land and rule rather than to cultivate rich plains and be slaves." (p 43. Bradford, Ernle. Thermopylae, The Battle for the West. Da Capo Press, 1980.)
That's why people live in Chicago.
This however, is the Brooklyn Brdige in NYC.