Truer words were never spoken

Abraham Lincoln said, in an address to the Wisconsin State Agricultural Society in Milwaukee, WI, on September 30, 1859:

It is 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." How much it expresses! How chastening in the hour of pride! How consoling in the depths of affliction!