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have frequently remarked； when I had to make active choice
between virtue and vice； that they often enough led me to the
part that was worse； and this is why I do not see any reason
for following them in what regards truth and error。
And as to the other reason； which is that these ideas
must proceed from objects outside me； since they do not depend
on my will； I do not find it any the more convincing。 For
just as these impulses of which I have spoken are found in me；
notwithstanding that they do not always concur with my will；
so perhaps there is in me some faculty fitted to produce these
ideas without the assistance of any external things； even
though it is not yet known by me； just as； apparently； they
have hitherto always been found in me during sleep without the
aid of any external objects。
And finally； though they did proceed from objects
different from myself； it is not a necessary consequence that
they should resemble these。 On the contrary； I have noticed
that in many cases there was a great difference between the
object and its idea。 I find； for example； two pletely
diverse ideas of the sun in my mind； the one derives its
origin from the senses； and should be placed in the category
of adventitious ideas； according to this idea the sun seems to
be extremely small； but the other is derived from astronomical
reasonings； i。e。 is elicited from certain notions that are
innate in me； or else it is formed by me in some other manner；
in accordance with it the sun appears to be several times
greater than the earth。 These two ideas cannot； indeed； both
resemble the same sun； and reason makes me believe that the
one which seems to have originated directly from the sun
itself； is the one which is most dissimilar to it。
All this causes me to believe that until the present time
it has not been by a judgment that was certain ＇or
premeditated＇； but only by a sort of blind impulse that I
believed that things existed outside of； and different from
me； which； by the organs of my senses； or by some other method
whatever it might be； conveyed these ideas or images to me
＇and imprinted on me their similitudes＇。
But there is yet another method of inquiring whether any
of the objects of which I have ideas within me exist outside
of me。 If ideas are only taken as certain modes of thought； I
recognise amongst them no difference or inequality； and all
appear to proceed from me in the same manner； but when we
consider them as images； one representing one thing and the
other another； it is clear that they are very different one
from the other。 There is no doubt that those which represent
to me substances are something more； and contain so to speak
more objective reality within them ＇that is to say； by
representation participate in a higher degree of being or
perfection＇ than those that simply represent modes or
accidents； and that idea again by which I understand a supreme
God； eternal； infinite； ＇immutable＇； omniscient； omnipotent；
and Creator of all things which are outside of Himself； has
certainly more objective reality in itself than those ideas by
which finite substances are represented。
Now it is manifest by the natural light that there must
at least be as much reality in the efficient and total cause
as in its effect。 For； pray； whence can the effect derive its
reality； if not from its cause？ And in what way can this
cause municate this reality to it； unless it possessed it
in itself？ And from this it follows； not only that something
cannot proceed from nothing； but likewise that what is more
perfect￥that is to say； which has more reality within
itself￥cannot proceed from the less perfect。 And this is not
only evidently true of those effects which possess actual or
formal reality； but also of the ideas in which we consider
merely what is termed objective reality。 To take an example；
the stone which has not yet existed not only cannot now
mence to be unless it has been produced by something which
possesses within itself； either formally or eminently； all
that enters into the position of the stone ＇i。e。 it must
possess the same things or other more excellent things than
those which exist in the stone＇ and heat can only be produced
in a subject in which it did not previously exist by a cause
that is of an order ＇degree or kind＇ at least as perfect as
heat； and so in all other cases。 But further； the idea of
heat； or of a stone； cannot exist in me unless it has been
placed within me by some cause which possesses within it at
least as much reality as that which I conceive to exist in the
heat or the stone。 For although this cause does not transmit
anything of its actual or formal reality to my idea； we must
not for that reason imagine that it is necessarily a less real
cause； we must remember that ＇since every idea is a work of
the mind＇ its nature is such that it demands of itself no
other formal reality than that which it borrows from my
thought； of which it is only a mode ＇i。e。 a manner or way of
thinking＇。 But in order that an idea should contain some one
certain objective reality rather than another； it must without
doubt derive it from some cause in which there is at least as
much formal reality as this idea contains of objective
reality。 For if we imagine that something is found in an idea
which is not found in the cause； it must then have been
derived from nought； but however imperfect may be this mode of
being by which a thing is objectively ＇or by representation＇
in the understanding by its idea； we cannot certainly say that
this mode of being is nothing； nor consequently； that the idea
derives its origin from nothing。
Nor must I imagine that； since the reality that I
consider in these ideas is only objective； it is not essential
that this reality should be formally in the causes of my
ideas； but that it is sufficient that it should be found
objectively。 For just as this mode of objective existence
pertains to ideas by their proper nature； so does the mode of
formal existence pertain tot he causes of those ideas （this is
at least true of the first and principal） by the nature
peculiar to them。 And although it may be the case that one
idea gives birth to another idea； that cannot continue to be
so indefinitely； for in the end we must reach an idea whose
cause shall be so to speak an archetype； in which the whole
reality ＇or perfection＇ which is so to speak objectively ＇or
by representation＇ in these ideas is contained formally ＇and
really＇。 Thus the light of nature causes me to know clearly
that the ideas in me are like ＇pictures or＇ images which can；
in truth； easily fall short of the perfection of the objects
from which they have been derived； but which can never contain
anything greater or more perfect。
And the longer and the more carefully that I investigate
these matters； the more clearly and distinctly do I recognise
their truth。 But what am I to conclude from it all in the
end？ It is this； that if the objective reality of any one of
my ideas is of such a nature as clearly to make me recognise
that it is not in me either formally or eminently； and that
conseq