We are ready for any unforeseen event that may or may not occur. Dan Quayle
I can see … only one safe rule for the historian: that he should recognize in the development of human destinies the play of the contingent and the unforeseen. H A L Fisher
The art of living is more like wrestling than dancing, in so far as it stands ready against the accidental and the unforeseen, and is not apt to fall. Marcus Aurelius
…history is a story of inertia and the unforeseen. George F Will