A liberal education is a system or course of education suitable for the cultivation of a free (Latin: liber) human being. It is based on the medieval concept of the liberal arts or, more commonly now, the liberalism of the Age of Enlightenment. It has been described as "a philosophy of education that empowers individuals with broad knowledge and transferable skills, and a stronger sense of values, ethics, and civic engagement ... characterised by challenging encounters with important issues, and more a way of studying than a specific course or field of study" by the Association of American Colleges and Universities. Usually global and pluralistic in scope, it can include a general education curriculum which provides broad exposure to multiple disciplines and learning strategies in addition to in-depth study in at least one academic area.