8. But this is not all: for purity clears the outward part of the glass too. First by consequence, because the finer the spirits and blood are, the finer will be the threads of the outward veil also. Then more directly; because temperance refines and subtilizes the texture of the body, and diminishes its bulk and grossness, and unloads the soul of a good part of that burthen, which not only presses down her aspirations, but also hinders her sight.
*9. And as purity thus clears the medium, so it also assists the faculty. And that by the same general way, by composing the passions, which otherwise not only trouble and thicken the medium, but also divide and disperse the faculty. For the more things a man desires, the more he will be engaged to think on; and the more he thinks on at once, the more languid and confused will his conceptions be. But purity, by composing the passions, contracts the desires, and by contracting these, it contracts also the thoughts; whereby a man is reduced to a greater unity, simplicity and recollection of mind; and having but few thoughts to divide him, is the better able to think clearly.
10. Purity of heart serves to the acquirement of knowledge, secondly, by the divine blessing. It invites not only the Holy Spirit, but also the Father and the Son, even the whole Godhead, to come and dwell in the soul. This we are assured of from our Lord’s own mouth: He that loveth me, shall be loved of my Father, and I will love him and manifest myself to him. And again, If a man love me, my Father will love him, and we will come unto him, and make our abode with him. The chaste and good soul shall not only be loved by God, but be also of his council and privacy. This is the beloved disciple, who has the privilege to lean upon the bosom of his Lord, and to be admitted to his most secret communications. And therefore says the psalmist, The secret of the Lord is with them that fear him. And of Ananias, Azarias, and Misael, who refused to defile themselves with the king’s meat, it is said, That God gave them knowledge and skill in all learning and wisdom.
11. The third and last way of consulting God is by prayer. This also is a method which the scripture advises us to. If any of you lack wisdom, let him ask of God, who giveth to every man liberally, and upbraideth not, and it shall be given him. And this we know was the method whereby the wisest of men obtained his unparalleled wisdom. For as wisdom was his choice, so the method of his seeking and gaining it was by prayer.
12. Thus have I designed, and by scripture and reason proved, what is the right method of prosecuting that truth which is perfective of the understanding. And now I think there needs not many words to shew, that as learning is commonly placed in what is not perfective of it, so what is so, is generally prosecuted by undue methods. For whereas the first method of acquiring it is by attention or thinking, this is generally so little regarded, that few men think less, for the most part, than they who are engaged in the professed study of knowledge. This they don’t reckon any part of study, nor any progress in the stage of learning, but only a graver way of being idle. ’Tis then only they study, when they are hanging their heads over an old musty folio, and stuffing their memories with grey sentences and venerable sayings. And thus they spend their time and their pains, and having scrambled through a company of books (most of which perhaps were written to as little purpose as they are read) they think themselves learned men, and the world is too often of their opinion, tho’ they have not made themselves master of any sense or notion, nor are able to demonstrate one single truth upon solid principles, and in a consequential process.
13. And this is the method not only of those who misplace learning, but also of the most of those who place it right. Even these do not generally think for it, but read for it; seek it not in their souls, but in books. I deny not that reading is one way to knowledge; but then ’tis only by accident, as it is a help to thinking. And therefore thinking is the only thing to be regarded even in reading; for reading, as such, is nothing. And then we read to most purpose, when we are thereby most enabled to think. So that thinking is the immediate end of reading, as understanding is of thinking. And yet this method is generally so much inverted, that the main stress is laid upon reading. Nothing but read, read, as long as eyes and spectacles will hold; no matter whether the head be clear, so it be but full.
14. Again, whereas purity of heart and life is another method of attaining true knowledge, ’tis a sad as well as just observation, that this is not only neglected by those who sit down contentedly in ignorance, but also by the generality of those few that addict themselves to the improvement of their minds. Nay, these, in proportion to their number, seem more guilty in this respect than the others, and nothing is so common, as to see men of famed learning, who are yet very corrupt in their tempers and lives. Whence some have fancied learning an enemy to religion, and cried up ignorance as the mother of devotion. And tho’ their conclusion be notoriously absurd, yet it must be owned, the ground on which they build it is too true. Men famed for learning are often as infamous for living; and many that study hard to furnish their heads, are yet very negligent in purifying their hearts: not considering, that there is a moral as well as a natural communication between them; and that they are concerned to be pure in heart and life, not only upon the common account in order to happiness hereafter, but even in order to their own particular end here.
15. Then, lastly, whereas another method of learning is prayer; the generality of students do not apply themselves to this at all. Pray indeed (’tis to be hoped) they do for other things which they think lie more out of their reach; but as for learning, they think they can compass this well enough by their own industry, and the help of good books, without being beholden to the assistance of heaven. But did they attentively consider, that God is truth, ’tis not to be imagined they would be so indifferent in using prayer, or any of the preceding methods of consulting God for his own light.