One might say “surely shrieking with pain is a good example of involuntary speaking because here ¤ far from there being an act of volition which worked the speaking || not only there is no act of volition by which we speak there even was one against it.” I should say: Certainly I too would || should call this involuntary speaking. But the effort is also absent in most cases of voluntary speaking. And I agree that an act of volition preparatory to or accompanying the speech is absent if by ‘act of volition’ you refer to certain acts of intention, premeditation or effort. But then in many cases of voluntary speech I don't feel an effort, many were not premeditated & as to intentions sometimes the unintentional action is characterized as such by an experience of surprise in others the intentional is characterized by a spoken or imagined expression of intention.