I’ve mentioned several times the fourfold of Who, What, Why, and How, mostly because I perceive an association between it and Aristotle’s Four Causes: Who for Efficient Cause, What for Material Cause, Why for Final Cause, and How for Formal Cause.
But evidently they are mentioned often with the first four, as the several links below indicate. These six questions are used in elementary education and even beginning journalism to elicit six answers. They also form three pairs as follows:
- Who – What
- Where – When
- How – Why