The heretical Teaching says that the Will is a Mixture.

But we are not stating the case as the Heresies state it. For they say that Constituents of Good and Evil are mingled together in us, and "these Constituents conquer one another, and are conquered by one another." But although Error is able to deck out what is false, the furnace of Truth is able to expose it. For we say that free Volitions conquer one another, and are conquered by one another ; for this is the Freewill which the voice of the Law can transform.