Management is thus what tradition used to call a liberal art: 'liberal' because it deals with the fundamentals of knowledge, self-knowledge, wisdom, and leadership; 'art' because it is practice and application. Managers draw on all the knowledge and insights of the humanities and the social sciences – on psychology and philosophy, on economics and on history, on the physical sciences and on ethics. But they have to focus this knowledge on effectiveness and results – on healing a sick patient, teaching a student, building a bridge, designing and selling a 'user-friendly' software program.
For all these reasons, management will increasingly be the discipline and the practice through and in which the 'humanities' will again acquire recognition, impact, and relevance.
– Peter Drucker (1989)