Perspicacity

What Is Perspicacity? Perspicacity (also called perspicaciousness) is a penetrating discernment (from the Latin perspicācitās, meaning sharpsightedness, discrimination)—a clarity of vision or intellect which provides a deep understanding and insight. In 17th-century Europe, René Descartes devised systematic rules for clear thinking in his work Regulæ ad directionem ingenii (Rules for the direction of natural intelligence). In Descartes’ scheme, intelligence consisted...