A Discourse _OF A_ METHOD For the well guiding of REASON, And the Discovery of _Truth_ In the SCIENCES.

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LONDON, Printed by _Thomas Newcombe_. MDCXLIX.

To the _Understanding READER_.

The Great DESCARTES (who may justly challenge the first place amongst the Philosophers of this Age) is the Author of this Discourse; which in the Originall was so well known, That it could be no mans but his own, that his Name was not affix'd to it: I need say no more either of Him or It; He is best made known by Himself, and his Writings want nothing but thy reading to commend them. But as those who cannot compasse the Originals of _Titian_ and _Van-Dyke_, are glad to adorne their Cabinets with the Copies of them; So be pleased favourably to receive his Picture from my hand, copied after his own Designe: You may therein observe the lines of a well form'd Minde, The hightnings of Truth, The sweetnings and shadowings of Probabilities, The falls and depths of Falshood; all which serve to perfect this Masterpiece. Now although my after-draught be rude and unpolished, and that perhaps I have touch'd it too boldly, The thoughts of so clear a Minde, being so extremely fine, That as the choisest words are too grosse, and fall short fully to expresse such sublime Notions; So it cannot be, but being transvested, it must necessarily lose very much of its native Lustre: Nay, although I am conscious (notwithstanding the care I have taken neither to wrong the Authours Sense, nor offend the Readers Ear) of many escapes which I have made; yet I so little doubt of being excused, That I am confident, my endeavour cannot but be gratefull to all Lovers of Learning; for whose benefit I have Englished, and to whom I addresse this Essay, which contains a Method, by the Rules whereof we may Shape our better part, Rectifie our Reason, Form our Manners and Square our Actions, Adorn our Mindes, and making a diligent Enquiry into Nature, wee may attain to the Knowledge of the Truth, which is the most desirable union in the World.

Our Authour also invites all letterd men to his assistance in the prosecution of this Search; That for the good of Mankinde, They would practise and communicate Experiments, for the use of all those who labour for the perfection of Arts and Sciences: Every man now being obliged to the furtherance of so beneficiall an Undertaking, I could not but lend my hand to open the Curtain, and discover this New Model of Philosophy; which I now publish, neither to humour the present, nor disgust former times; but rather that it may serve for an innocent Divertisement to those, who would rather Reform themselves, then the rest of the world; and who, having the same seeds and grounds, and knowing That there is nothing New under the Sun; That Novelty is but Oblivion, and that Knowledge is but Remembrance, will study to finde out in themselves, and restore to Posterity those lost Arts, which render Antiquity so venerable; and strive (if it be possible) to go beyond them in other things, as well as Time: Who minde not those things which are above, beyond, or without them; but would rather limit their desires by their power, then change the Course of Nature; Who seek the knowledge, and labour for the Conquest of themselves; Who have Vertue enough to make their own Fortune; And who prefer the Culture of the Minde before the Adorning of the Body; To such as these I present this Discourse (whose pardon I beg, for having so long detain'd them from so desirable a Conversation;) and conclude with this Advice of the Divine _Plato_:

Table of contents (by pages)

• 1: A Discourse of a Method for the Well Guiding of Re
• 2: That I beleeve my self very happy
• 3: I had learnt all what others had learnt
• 4: Their histories and their fables
• 5: I imployed the rest of my youth in Travell
• 6: By which example I perswaded my self
• 7: They are alwayes more supportable
• 8: The Analysis of the Geometricians
• 9: Whatsoever ascertains the rules of Arithmatick
• 10: For the act of the thought by which we beleeve a thing
• 11: To imploy all my life in cultivating my Reason
• 12: Forasmuch as our Will inclining it self to follow
• 13: I rejected as false all those reasons
• 14: That those things which we conceive cleerly and distinctly
• 15: I had the Ideas of divers sensible and corporeall things
• 16: That truth and falshood proceed from nothing
• 17: It were now necessary for me to treat of severall questions
• 18: Although I had expresly supposed
• 19: Because that in effect its an artery
• 20: And of the veinous artery open again
• 21: Which causeth the bloud to issue more abundantly
• 22: That the force wherewith the bloud in rarifying it self
• 23: And all other qualities of exteriour objects
• 24: They could aswell make themselves understood by us
• 25: To undertake the change of any thing therein
• 26: But faithfully to communicate to the publique
• 27: There were so many severall ones presented themselves to me
• 28: And which I reckon for so many won Battails on my side
• 29: Before a usefull application can be made of them
• 30: He cannot profitably imploy other hands then his own
• 31: Of the Opticks and of the Meteors