Note (return) — Chapter XII

4. The Final Cause (τὸ οὗ ἕνεκεν καὶ τὸ ἀγαθόν)--the good end answered by the existence of any thing--that for the sake of which any thing is produced--the ἕνεκα τοῦ, or reason for it. 720 Thus, for instance, in a house, the wood out of which it is produced is the matter (ὕλη), the idea or conception according to which it is produced is the form (εἶδος῏῏µορφή), the builder who erects the house is the efficient cause, and the reason for its production, or the end of its existence is the final cause.