The words given voice inside the mind are not always clear, however; they can be gentle and elliptical, what the prophets call the bat qol, the daughter of the voice of God, she who speaks in whispers and half-seen images.
However, the mind has an amazing ability to continue worrying away at a problem all on its own, so that when the "Eureka!" comes it is as mysterious as if it were God speaking.
Using insult instead of argument is the sign of a small mind.