[281e]
but which supply to the arts which do produce it the tools without which no art could ever perform its prescribed work, may be called contingent causes, and those which produce the actual thing are causes.
Younger Socrates
At any rate, that is reasonable.
Stranger
Next, then, shall we designate all the arts which produce spindles, shuttles, and the various other tools that partake in the production of clothing as contingent causes, and those which treat and manufacture the clothing itself as causes?
Younger Socrates
Quite right.