1.9. CHAP. IX
Of the Several SUBJECTS Of KNOWLEDGE
THERE are of are of knowledge two kinds, whereof one is knowledge of
fact; the other, knowledge of the consequence of one affirmation to
another. The former is nothing else but sense and memory, and is
absolute knowledge; as when we see a fact doing, or remember it
done; and this is the knowledge required in a witness. The latter is
called science, and is conditional; as when we know that: if the
figure shown be a circle, then any straight line through the center
shall divide it into two equal parts. And this is the knowledge
required in a philosopher; that is to say, of him that pretends to
reasoning.
The register of knowledge of fact is called history, whereof there
be two sorts: one called natural history; which is the history of such
facts, or effects of Nature, as have no dependence on man's will; such
as are the histories of metals, plants, animals, regions, and the
like. The other is civil history, which is the history of the
voluntary actions of men in Commonwealths.
The registers of science are such books as contain the
demonstrations of consequences of one affirmation to another; and
are commonly called books of philosophy; whereof the sorts are many,
according to the diversity of the matter; and may be divided in such
manner as I have divided them in the following table.