Meditation 7.16
16. The governing self does not create disorder for itself; I mean, for instance, it does not alarm itself or (lead itself) to appetite. If, however, any one else can alarm it or give it pain, let him do so, for it will not itself, with the consent of its judgement, turn to such moods. Let the body, if it can, be careful itself to suffer nothing; and the vital spirit which entertains fear and grief, if it suffers anywhere, let it say that it does; but that which delivers judgement generally on these affections will not suffer, for it will not itself be hasty to deliver such a judgement. The governing power regarded by itself has no wants, unless it create want for itself, and in the same way it is untroubled and unhindered, unless it trouble and hinder itself.