最後にこの道徳の結論として,この世で人びとが携わっているさまざまな仕事をひととおり見直して,最善のものを選び出そう,と思い至った。他の人の仕事については何も言うつもりはないが,わたし自身はいまやつているこの仕事をつづけていくのがいちばん良いと考えた。すなわち,全生涯をかけて自分の理性を培い,自ら課した方法に従って,できうるかぎり真理の認識に前進していくことである。この方法を自分に役立てはじめて以来,このうえない満足をおぼえてきたので,この世でこれ以上に快く,邪念のない満足を得ることはできまい,と思ったほどだ。そしてこの方法によって,わたしには十分に重要と思われるが他の人には一般に知られていない何らかの真理を日々発見していったので,そこから得た満足はわたしの精神を完全に満たし,ほかのことはすべて,心に触れなくなったほどだ。そしてまた,先の三つの格率も,自分を教育しつづけていこうというわたしの計画にもとづいたものにほかならない。というのも,神はわれわれ一人一人に真と偽とを分かつ何らかの光を与えたのだから,もし後に時節がきて自分自身の判断力をもちいて他人の意見を検討しょうと期していなかったならば,わたしはほんの一瞬でも他人の意見に満足すべきだなどとは思ゎなかっただろう。またもし,もっと優れた意見が出てきた場合に,それを見つけ出す機会をけっして逃すまいと期していなかったならば,わたしは他人の意見に従って,安心して進むことなどできなかっただるつ。そして最後に,もし次のような一筋の道をたどっていなかったならば,わたしは自分の欲望を制限することも,満足をすることもできなかつただろう。その道を通れば,わたしの達しうるあらゆる知識を確実に獲得できると考えるとともに,同じやり方で,自分の力にかなう真に良いものすべてを確実に獲得できると考えていた。われわれの意志は,知性がものの善悪を表示するのに応じてのみ,それに従ったり,避けたりするのだから,よく行うためにはよく判断すれば十分であり,したがって,最善を尽くすためには,つまり,あらゆる美徳とともにわれわれの手に入りうる他のすべての善も獲得するためには,できるかぎりよく判断すれば十分なのである。そしてわれわれがこのことを確信するかぎり,心の満足を欠くことはないだろう。
In fine, to conclude this code of Morals,
I thought of reviewing the different occupations
of men in this life, with the view of making
choice of the best. And, without wishing
to offer any remarks on the employments of
others, I may state that it was my conviction
that I could not do better than continue
in that in which I was engaged, viz., in
devoting my whole life to the culture of
my Reason, and in making the greatest progress
I was able in the knowledge of truth, on
the principles of the Method which I had
prescribed to myself. This Method, from the
time I had begun to apply it, had been to
me the source of satisfaction so intense
as to lead me to believe that more perfect
or more innocent could not be enjoyed in
this life; and as by its means I daily discovered
truths that appeared to me of some importance,
and of which other men were generally ignorant,
the gratification thence arising so occupied
my mind that I was wholly indifferent to
every other object. Besides, the three preceding
maxims were founded singly on the design
of continuing the work of self-instruction.
For since God has endowed each of us with
some Light of Reason by which to distinguish
truth from error, I could not have believed
that I ought for a single moment to rest
satisfied with the opinions of another, unless
I had resolved to exercise my own judgment
in examining these whenever I should be duly
qualified for the task. Nor could I have
proceeded on such opinions without scruple,
had I supposed that I should thereby forfeit
any advantage for attaining still more accurate,
should such exist. And, in fine, I could
not have restrained my desires, nor remained
satisfied, had I not followed a path in which
I thought myself certain of attaining all
the knowledge to the acquisition of which
I was competent, as well as the largest amount
of what is truly good which I could ever
hope to secure. Inasmuch as we neither seek
nor shun any object except in so far as our
understanding represents it as good or bad,
all that is necessary to right action is
right judgment, and to the best action the
most judgment,?that is, to the acquisition
of all the virtues with all else that is
truly valuable and within our reach; and
the assurance of such an acquisition cannot
fail to render us contented.