Prudence is the virtue by which we discern what is proper to do under various circumstances in time and place.
John MiltonA dungeon horrible, on all sides round, As one great furnace, flamed; yet from those flames No light, but rather darkness visible Serv'd only to discover sights of woe, Regions of sorrow, doleful shades, where peace And rest can never dwell, hope never comes That comes to all; but torture without end.
John Milton