It has been said that idleness is the parent of mischief, which is very true; but mischief itself is merely an attempt to escape from the dreary vacuum of idleness.
Bio: Gebhard Leberecht von Blücher, Fürst von Wahlstatt, Graf, later elevated to Fürst von Wahlstatt, was a Prussian Generalfeldmarschall (field marshal).