Full Idea
Things are produced from skill if the form of them is in the mind.
Clarification
Skill is Greek 'techné'
Gist of Idea
Things are produced from skill if the form of them is in the mind
Source
Aristotle (Metaphysics [c.324 BCE], 1032a33)
Book Reference
Aristotle: 'Metaphysics', ed/tr. Lawson-Tancred,Hugh [Penguin 1998], p.190
A Reaction
This resembles the legal notion of 'mens rea', the conscious intention to commit the deed.