icant maxim: sapere aude
[dare to be wise.]

Dare to be wise! A spirited courage is required to triumph over the
impediments that the indolence of nature as well as the cowardice of the
heart oppose to our instruction. It was not without reason that the
ancient Mythos made Minerva issue fully armed from the head of Jupiter,
for it is with warfare that this instruction commences. From its very
outset it has to sustain a hard fight against the senses, which do not
like to be roused from their easy slumber. The greater part of men are
much too exhausted and enervated by their struggle with want to be able
to engage in a new and severe contest with error. Satisfied if they
themselves can escape from the hard labor of thought, they willingly
abandon to others the guardianship of their thoughts. And if it happens
that nobler necessities agitate their soul, they cling with a greedy
faith to the formula that the state and the church hold in reserve for
such cases. If these unhappy men deserve our compassion, those others
deserve our just contempt, who, though set free from those necessities by
more fortunate circumstances, yet willingly bend to their yoke. These
latter persons prefer this twilight of obscure ideas, where the feelings
have more intensity, and the imagination can at will create convenient
chimeras, to the rays of truth which put to flight the pleasant illusions
of their dreams. They have founded the whole structure of their
happiness on these very illusions, which ought to be combated and
dissipated by the light of knowledge, and they would think they were
paying too dearly for a truth which begins by robbing them of all that
has value in their sight. It would be necessary that they should be
already sages to love wisdom: a truth that was felt at once by him to
whom philosophy owes its name. [The Greek word means, as is known, love
of wisdom.]

It is therefore not going far enough to say that the light of the
understanding only deserves respect when it reacts on the character; to a
certain extent it is from the character that this light proceeds; for the
road that terminates in the head must pass through the heart.
Accordingly, the most pressing need of the present time is to educate the
sensibility, because it is the means, not only to render efficacious in
practice the improvement of ideas, but to call this improvement into
existence.

LETTER IX.

But perhaps there is a vicious circle in our previo