that their understanding and desire may entirely agree with my own.
(3) In order to bring this about, it is necessary to understand as
much of nature as will enable us to attain to the aforesaid character,
and also to form a social order such as is most conducive to the
attainment of this character by the greatest number with the least
difficulty and danger.

[15] (1) We must seek the assistance of Moral Philosophy [d] and
the Theory of Education; further, as health is no insignificant means
for attaining our end, we must also include the whole science of
Medicine, and, as many difficult things are by contrivance rendered
easy, and we can in this way gain much time and convenience, the
science of Mechanics must in no way be despised.

[16] (1) But before all things, a means must be devised for
improving the understanding and purifying it, as far as may be at
the outset, so that it may apprehend things without error, and in
the best possible way. (2) Thus it is apparent to everyone that I
wish to direct all science to one end [e] and aim, so that we may
attain to the supreme human perfection which we have named; and,
therefore, whatsoever in the sciences does not serve to promote
our object will have to be rejected as useless. (3) To sum up the
matter in a word, all our actions and thoughts must be directed to
this one end.

[17] (1) Yet, as it is necessary that while we are endeavoring to
attain our purpose, and bring the understanding into the right path
we should carry on our life, we are compelled first of all to lay
down certain rules of life as provisionally good, to wit the
following:-