Everybody thought, “this time is different.” In my view, those are the most frightening words in the English language. If you look at the crises that have infected the world, the term, “this time, it’s different” has almost always been the hubris that comes before nemesis.

Andrew Crockett (1943-2012) British banker, economist, author, public servant

Speech, Pomona College, Claremont, Calif. (Apr 2009)
    (Source)

Referring to the period leading up to the 2008 financial crisis.