Irae quandoque est usque ad impediendum rationem a cohibitione linguae; quandoque autem ultra procedit, usque ad impediendum motum linguae, et aliorum membrorum exteriorum, quia perturbatio cordis quandoque potest superabundare usque ad hoc, quod per inordinatum motum cordis impediatur motus exteriorum membrorum; et tunc causatur taciturnitas, et immobilitas exteriorum membrorum.
Anger sometimes goes so far as to hinder the reason from curbing the tongue, but sometimes it goes yet farther, so as to paralyze the tongue and other outward members, because the disturbance of the heart may sometimes superabound to the extend that the movements of the outward members are hindered by the inordinate movement of the heart; thence ensue taciturnity and immobility of the outward members.
Gregorius dicit, in V Moral., quod "ira per silentium clausa, intra mentem vehementius aestuat".
Gregory says (Moral. v, 30) that "when anger does not vent itself outwardly by the lips, inwardly it burns the more fiercely".