Thus the grammarian derives his name from the word 'grammar', and
the courageous man from the word 'courage'.

Part 2

Forms of speech are either simple or composite. Examples of the
latter are such expressions as 'the man runs', 'the man wins'; of
the former 'man', 'ox', 'runs', 'wins'.

Of things themselves some are predicable of a subject, and are
never present in a subject. Thus 'man' is predicable of the
individual man, and is never present in a subject.

By being 'present in a subject' I do not mean present as parts
are present in a whole, but being incapable of existence apart
from the said subject.

Some things, again, are present in a subject, but are never
predicable of a subject. For instance, a certain point of
grammatical knowledge is present in the mind, but is not
predicable of any subject; or again, a certain whiteness may be
present in the body (for colour requires a material basis), yet
it is never predicable of anything.

Other things, again, are both predicable of a subject and present
in a subject. Thus while knowledge is present in the human mind,
it is predicable of grammar.

There is, lastly, a class of things which are neither present in
a subject nor predicable of a subject, such as the individual man