An Athenian citizen does not neglect his state because he takes care of his own household; even those of us who are engaged in business have a very fair idea of politics. We do not regard a man who takes no interest in public affairs as harmless. We do not say that such a man 'minds his own business'. Rather we say he has no business here at all.
PericlesTrees, though they are cut and loped, grow up again quickly, but if men are destroyed, it is not easy to get them again
Pericles