For our light and momentary troubles are achieving for us an eternal glory that far outweighs them all.  So we fix our eyes not on what is seen, but on what is unseen, since what is seen is temporary, but what is unseen is eternal.
(2 Corinthians 4:17-18 -- NIV)

Abraham Lincoln, in a speech on September 20,1859 at the Wisconsin state fair, said, "An Eastern monarch once charged his wise men to invent him a sentence, to be ever in view, and which should be true and appropriate in all times and situations.  They presented him the words: 'And this, too, shall pass away.'"