Mad Fortune sweeps along in wanton pride,
Uncertain as Euripus’ surging tide;
Now tramples mighty kings beneath her feet;
Now sets the conquered in the victor’s seat.
She heedeth not the wail of hapless woe,
But mocks the griefs that from her mischief flow.
Such is her sport; so proveth she her power;
And great the marvel, when in one brief hour
She shows her darling lifted high in bliss,
Then headlong plunged in misery’s abyss.

– Boethius

Fortune’s Malice, The Consolation of Philosophy.