How often do the involuntary motions of the countenance discover our inward thoughts, and betray our most private secrets to the bystanders.

The same cause that animates this member, does also, without our knowledge, animate the lungs, pulse, and heart, the sight of a pleasing object imperceptibly diffusing a flame through all our parts, with a feverish motion.

Is there nothing but these veins and muscles that swell and flag without the consent, not only of the will, but even of our knowledge also?
We do not command our hairs to stand on end, nor our skin to shiver either with fear or desire; the hands often convey themselves to parts to which we do not direct them; the tongue will be interdict, and the voice congealed, when we know not how to help it.

When we have nothing to eat, and would willingly forbid it, the appetite does not, for all that, forbear to stir up the parts that are subject to it, no more nor less than the other appetite we were speaking of, and in like manner, as unseasonably leaves us, when it thinks fit.

The vessels that serve to discharge the belly have their own proper dilatations and compressions, without and beyond our concurrence, as well as those which are destined to purge the reins; and that which, to justify the prerogative of the will, St.Augustine urges, of having seen a man who could command his rear to discharge as often together as he pleased, Vives, his commentator, yet further fortifies with another example in his time,--of one that could break wind in tune; but these cases do not suppose any more pure obedience in that part; for is anything commonly more tumultuary or indiscreet?
To which let me add, that I myself knew one so rude and ungoverned, as for forty years together made his master vent with one continued and unintermitted outbursting, and 'tis like will do so till he die of it.