only Natural Motion of the Will must needs be unspeakably delightful to it. Besides that peculiar delectation, which this Fountain of Joy bestows as a Donative, on all who thus sincerly address themselves to him. So that it is not enough to be Morally Good because ’tis most Reputable and Easie, and most for our Pleasure and Interest in the present World, as this will never secure our Duty, so is it too low an End for a Creature Capable of Immortality to propose, nothing less than an intire devoting of our selves to the End for which we were made, the Service and Enjoyment of the most amiable and only Good, can keep us Constantly and Uniformly in our Duty, or is a Design that’s worthy of us. CHAP. III. _Concerning the Improvement of the Understanding._ I. _Of the Capacity of the Humane Mind in General._ II. _Of Particular Capacities._ III. _The most common Infirmities incident to the Understanding and their Cure._ IV. _A Natural Logic, And_ V. _Rhetoric propos’d._ VI. _The Application and Use of our Knowlege._ The perfection of the Understanding consisting in the Clearness and Largness of its view, it improves proportionably as its Ideas become Clearer and more Extensive. But this is not so to be understood as if all sorts of Notices contributed to our Improvement, there are some things which make us no wiser when we know ’em, others which ’tis best to be ignorant of. But that Understanding seems to me the most exalted, which has the Clearest and most Extensive view of such Truths as are suitable to its Capacity, and Necessary or Convenient to be Known in this Present State. For being that we are but Creatures, our Understanding in its greatest Perfection has only a limited excellency. It has indeed a vast extent, and it were not amiss if we tarried a little in the Contemplation of its Powers and Capacities, provided that the Prospect did not make us giddy, that we remember from whom we have receiv’d them, and ballance those lofty Thoughts which a view of our Intellectuals may occasion, with the depressing ones which the irregularity of our Morals will suggest, and that we learn from this inspection, how indecorous it is to busy this bright side of us in mean things, seeing it is capable of such noble ones.