The sense of security more frequently springs from habit than from conviction, and for this reason it oftensubsists after such a change in the conditions as might have been expected to suggest alarm. The lapse of time during which a given event has not happened, is, in this logic of habit, constantly alleged as a reason why the event should never happen, even when the lapse of time is precisely the added condition which makes the event imminent.
George Eliot, Silas Marner
complacency, security