By David Blockley
Aristotle saw five ways of arriving at the truth – he called them art (ars, techne), science (episteme), intuition (nous), wisdom (sophia) and practical wisdom – sometimes translated as prudence (phronesis). Ars or techne (from which we get the words art and technical, technique and technology) was concerned with production but not action. Art had a productive state, truly reasoned, with an end (i.e. a product) other than itself (e.g. a building).