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Unless then the appetite be obedient and subjected to the

governing principle it will become very great: for in the fool

the grasping after what is pleasant is insatiable and

undiscriminating; and every acting out of the desire increases

the kindred habit, and if the desires are great and violent in

degree they even expel Reason entirely; therefore they ought to

be moderate and few, and in no respect to be opposed to Reason.

Now when the appetite is in such a state we denominate it

obedient and chastened.

In short, as the child ought to live with constant regard to the

orders of its educator, so should the appetitive principle with

regard to those of Reason.