e the law from one
and the other; but it is not in the same relation with one and the other.
Inasmuch as it is a natural force it is equally free with regard to
nature and with respect to reason; I mean to say it is not forced to pass
either on the side of one or of the other: but as far as it is a moral
faculty it is not free; I mean that it ought to choose the law of reason.
It is not chained to one or the other, but it is obliged towards the law
of reason. The will really then makes use of its liberty even whilst it
acts contrary to reason: but it makes use of it unworthily, because,
notwithstanding its liberty, it is no less under the jurisdiction of
nature, and adds no real action to the operation of pure instinct; for to
will by virtue of desire is only to desire in a different way.

There may be conflict between the law of nature, which works in us
through the instinct, and the law of reason, which comes out of
principles, when the instinct, to satisfy itself, demands of us an action
which disgusts our moral sense. It is, then, the duty of the will to
make the exigencies of the instinct give way to reason. Whilst the laws
of nature oblige the will only conditionally, the laws of reason oblige
absolutely and without conditions.

But nature obstinately maintains her rights, and as it is never by the
result of free choice that she solicits us, she also does not withdraw
any of her exigencies as long as she has not been satisfied. Since, from
the first cause which gave the impulsion to the threshold of the will
where its jurisdiction ends, all in her is rigorously necessary,
consequently she can neither give way nor go back, but must always go
forward and press more and more the will on which depends the
satisfaction of her wants. Sometimes, it is true, we could say that
nature shortens her road and acts immediately as a cause for the
satisfaction of her needs without having in the first instance carried
her request before the will. In such a case, that is to say, if man not
simply allowed instinct to follow a free course, but if instinct took
this course of itself, man would be no more than the brute. But it is
very doubtful whether this case would ever present itself, and if ever it
were really presented it would remain to be seen whether we should not
blame the will itself for this blind power which the instinct would have
usurped.

Thus the appetitive faculty claims with persistence the satisfaction of
its wan