Descartes,_Rene_-_Discourse_On_The_Method_Of_Rightly_Conducting_The_Reason,_And_Seeking_Truth_In_Th.pdf

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Seeking Truth
DISCOURSE ON THE METHOD
OF RIGHTLY CONDUCTING THE REASON,
AND SEEKING TRUTH IN THE SCIENCES
by
René Descartes
Cogito Ergo Sum
This Electronic Book Is a Publication of the Pennsylvania State University’s
Electronic Classics Series,
Jim Manis
Faculty Editor
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DISCOURSE ON THE METHOD OF RIGHTLY CONDUCTING THE REASON, AND SEEKING TRUTH IN
THE SCIENCES by René Descartes , is a publication of the Pennsylvania State University. This
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DISCOURSE ON THE METHOD OF RIGHTLY CONDUCTING THE REASON, AND SEEKING TRUTH IN
THE SCIENCES by René Descartes, the Pennsylvania State University, Jim Manis, Faculty Editor,
Hazleton, PA 18201-1291 is a Portable Document File produced as part of an ongoing student
publication project, the Pennsylvania State University’s Electronic Classics Series, to bring classi-
cal works of literature, in English to free and easy access of those wishing to make use of them.
Copyright © 1998 The Pennsylvania State University
The Pennsylvania State University is an equal opportunity university.
DISCOURSE ON THE METHOD
DISCOURSE ON THE
METHOD OF RIGHTLY
CONDUCTING THE REA-
SON, AND SEEKING
TRUTH IN THE SCIENCES
in the fifth, the order of the Physical questions which he
has investigated, and, in particular, the explication of the
motion of the heart and of some other difficulties pertain-
ing to Medicine, as also the difference between the soul of
man and that of the brutes; and, in the last, what the Au-
thor believes to be required in order to greater advancement
in the investigation of Nature than has yet been made, with
the reasons that have induced him to write.
by
PART I
René Descartes
Good sense is, of all things among men, the most equally
distributed; for every one thinks himself so abundantly pro-
vided with it, that those even who are the most difficult to
satisfy in everything else, do not usually desire a larger mea-
sure of this quality than they already possess. And in this it
is not likely that all are mistaken the conviction is rather to
be held as testifying that the power of judging aright and of
distinguishing truth from error, which is properly what is
called good sense or reason, is by nature equal in all men;
and that the diversity of our opinions, consequently, does
not arise from some being endowed with a larger share of
reason than others, but solely from this, that we conduct
our thoughts along different ways, and do not fix our atten-
PREFATORY NOTE BY THE AUTHOR
If this Discourse appear too long to be read at once, it may
be divided into six Parts: and, in the first, will be found
various considerations touching the Sciences; in the sec-
ond, the principal rules of the Method which the Author has
discovered, in the third, certain of the rules of Morals which
he has deduced from this Method; in the fourth, the reason-
ings by which he establishes the existence of God and of the
Human Soul, which are the foundations of his Metaphysic;
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DISCOURSE ON THE METHOD
tion on the same objects. For to be possessed of a vigorous
mind is not enough; the prime requisite is rightly to apply
it. The greatest minds, as they are capable of the highest
excellences, are open likewise to the greatest aberrations;
and those who travel very slowly may yet make far greater
progress, provided they keep always to the straight road,
than those who, while they run, forsake it.
For myself, I have never fancied my mind to be in any
respect more perfect than those of the generality; on the
contrary, I have often wished that I were equal to some
others in promptitude of thought, or in clearness and dis-
tinctness of imagination, or in fullness and readiness of
memory. And besides these, I know of no other qualities
that contribute to the perfection of the mind; for as to the
reason or sense, inasmuch as it is that alone which consti-
tutes us men, and distinguishes us from the brutes, I am
disposed to believe that it is to be found complete in each
individual; and on this point to adopt the common opinion
of philosophers, who say that the difference of greater and
less holds only among the accidents, and not among the
forms or natures of individuals of the same species.
I will not hesitate, however, to avow my belief that it has
been my singular good fortune to have very early in life
fallen in with certain tracks which have conducted me to
considerations and maxims, of which I have formed a method
that gives me the means, as I think, of gradually augment-
ing my knowledge, and of raising it by little and little to the
highest point which the mediocrity of my talents and the
brief duration of my life will permit me to reach. For I have
already reaped from it such fruits that, although I have been
accustomed to think lowly enough of myself, and although
when I look with the eye of a philosopher at the varied
courses and pursuits of mankind at large, I find scarcely one
which does not appear in vain and useless, I nevertheless
derive the highest satisfaction from the progress I conceive
myself to have already made in the search after truth, and
cannot help entertaining such expectations of the future as
to believe that if, among the occupations of men as men,
there is any one really excellent and important, it is that
which I have chosen.
After all, it is possible I may be mistaken; and it is but a
little copper and glass, perhaps, that I take for gold and
diamonds. I know how very liable we are to delusion in what
relates to ourselves, and also how much the judgments of
our friends are to be suspected when given in our favor. But
I shall endeavor in this discourse to describe the paths I
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DISCOURSE ON THE METHOD
have followed, and to delineate my life as in a picture, in
order that each one may also be able to judge of them for
himself, and that in the general opinion entertained of them,
as gathered from current report, I myself may have a new
help towards instruction to be added to those I have been in
the habit of employing.
My present design, then, is not to teach the method which
each ought to follow for the right conduct of his reason, but
solely to describe the way in which I have endeavored to
conduct my own. They who set themselves to give precepts
must of course regard themselves as possessed of greater
skill than those to whom they prescribe; and if they err in
the slightest particular, they subject themselves to censure.
But as this tract is put forth merely as a history, or, if you
will, as a tale, in which, amid some examples worthy of
imitation, there will be found, perhaps, as many more which
it were advisable not to follow, I hope it will prove useful to
some without being hurtful to any, and that my openness
will find some favor with all.
From my childhood, I have been familiar with letters; and
as I was given to believe that by their help a clear and cer-
tain knowledge of all that is useful in life might be acquired,
I was ardently desirous of instruction. But as soon as I had
finished the entire course of study, at the close of which it
is customary to be admitted into the order of the learned, I
completely changed my opinion. For I found myself involved
in so many doubts and errors, that I was convinced I had
advanced no farther in all my attempts at learning, than the
discovery at every turn of my own ignorance. And yet I was
studying in one of the most celebrated schools in Europe, in
which I thought there must be learned men, if such were
anywhere to be found. I had been taught all that others
learned there; and not contented with the sciences actually
taught us, I had, in addition, read all the books that had
fallen into my hands, treating of such branches as are es-
teemed the most curious and rare. I knew the judgment which
others had formed of me; and I did not find that I was con-
sidered inferior to my fellows, although there were among
them some who were already marked out to fill the places of
our instructors. And, in fine, our age appeared to me as
flourishing, and as fertile in powerful minds as any preced-
ing one. I was thus led to take the liberty of judging of all
other men by myself, and of concluding that there was no
science in existence that was of such a nature as I had pre-
viously been given to believe.
I still continued, however, to hold in esteem the studies of
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