For Satan finds some mischief still For idle hands to do.
ATTRIBUTION:
Isaac Watts (1674–1748), British hymn-writer. Against Idleness and Mischief, st. 3, Divine Songs for Children (1715).
A similar thought was expressed in one of the Scottish Proverbs collected by John Ray in 1719; variations of the saying have been traced back as far as St Jerome (c. 342-420).
