Therefore if I must direct you according to my judgment, I must advise you, 1. To suppose that philosophers are all still in very great darkness, and there is much confusion, defectiveness, error, and division, and uncertainty among them. 2. Therefore addict not yourselves absolutely to any sect of them. 3. Let your first studies of them all leave room for the changing of your judgment, and do not too hastily fix on any of their sentiments as sure, till you have heard what others say, and with ripened understandings have deeply and long studied the things themselves. 4. Choose out so much of the certainties and useful parts of physics as you can reach to, and make them know their places in subserviency to your holy principles and ends; and rather be well content with so much, than to lose too much time in a vain fatiguing of your brains for more.
I have made some attempt to draw out so much, especially _de mundo et de homine_, in my "Methodus Theologiæ," though I expect it should no more satisfy others, than any of theirs have satisfied me.
_Direct._ XII. When you have well stated your ontology or real science, then review your logic and organical part of metaphysics; and see that _verba rebus aptentur_; fetch then your words and organical notions from the nature of the things. Abundance are confounded by taking up logical notions first which are unsuitable to true physical beings.
_Direct._ XIII. Somewhat of ethics may be well learned of philosophers, but it is nothing to the Scripture's christian ethics.
_Direct._ XIV. Somewhat of artificial rhetoric and oratory should be known; but the oratory which is most natural, from the evidence of things, well managed by a good understanding and elocution, which hath least of appearing art or affectation, is ever the most effectual, and of best esteem.
_Direct._ XV. The doctrine of politics, especially of the nature of government and laws in general, is of great use to all that will ever understand the nature of God's government and laws, that is, of religion. Though there be no necessity of knowing the government and laws of the land or of other countries, any further than is necessary to our obedience or outward concernments, yet so much of government and laws as nature and Scripture make common to all particular forms and countries, must be known by him that will understand morality or divinity, or will ever study the laws of the land. And it is a preposterous course, and the way of ignorance and error, for a divine to study God's laws, and a lawyer man's laws, before either of them know in general what a law or what government is, as nature notifieth it to us.
_Direct._ XVI. When you come to divinity, I am not for their way that would have you begin with the fathers, and thence form a body of divinity to yourselves: if every young student must be put on such a task, we may have many religions quickly, but shall certainly have much ignorance and error. We must not be so blind or unthankful to God as to deny that later times have brought forth abundance of theological writings, incomparably more methodical, judicious, full, clear, and excellently fitted also by application, to the good of souls, than any that are known to us since the writing of the sacred Scriptures. Reverence of antiquity hath its proper place and use, but is not to make men fools, non-proficients, or contemners of God's greater mercies.
My advice therefore is, that you begin with a conjunction of English catechisms, and the confessions of all the churches, and the practical holy writings of our English divines; and that you never separate these asunder.[470] These practical books do commonly themselves contain the principles, and do press them in so warm a working manner as is likest to bring them to the heart; and till they are there, they are not received according to their use, but kept as in the porch. Get then six or seven of the most judicious catechisms, and compare them well together, and compare all the confessions of the churches (where you may be sure that they put those which they account the weightiest and surest truths). And with them read daily the most spiritual heart-moving treatises, of regeneration, and our covenant with God in Christ, of repentance, faith, love, obedience, hope, and of a heavenly mind and life; as also of prayer and other particular duties, and of temptations and particular sins.