Aristotle - index for METAPHYSICA Book 9 Part 7

When a thing exists potentially and when not.

Paragraph 1 What, and what kind of thing, the actual is, may be taken as explained by these and similar considerations.
Paragraph 2 And (1) the delimiting mark of that which as a result of thought comes to exist in complete reality from having existed potentially is that if the agent has willed it it comes to pass if nothing external hinders, while the condition on the other side - viz. in that which is healed - is that nothing in it hinders the result.
Paragraph 3 And (2) in the cases in which the source of the becoming is in the very thing which comes to be, a thing is potentially all those things which it will be of itself if nothing external hinders it.
Paragraph 4 It seems that when we call a thing not something else but 'thaten' - e.g. a casket is not 'wood' but 'wooden', and wood is not 'earth' but 'earthen', and again earth will illustrate our point if it is similarly not something else but 'thaten' - that other thing is always potentially (in the full sense of that word) the thing which comes after it in this series.
Paragraph 5 We have stated, then, when a thing is to be said to exist potentially and when it is not.

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