Window-breaking does not necessarily occur on a large scale because some areas are inhabited by determined window-breakers whereas others are populated by window-lovers; rather, one unrepaired broken window is a signal that no one cares, and so breaking more windows costs nothing.
James Q. WilsonArresting a single drunk or a single vagrant who has harmed no identifiable person seems unjust, and in a sense it is. But failing to do anything about a score of drunks or a hundred vagrants may destroy an entire community.
James Q. WilsonPolice ought to protect communities as well as individuals.... Just as physicians now recognize the importance of fostering health rather than simply treating illness, so the police - and the rest of us - ought to recognize the importance of maintaining, intact, communities without broken windows.
James Q. Wilson