— 544 —
Because the connexion between most simple Ideas is unknown.
      §10. This, how weighty and considerable a part soever of
Humane Science, is yet very narrow, and scarce any at all. The
reason whereof is, that the simple Ideas whereof our complex Ideas
of Substances are made up, are, for the most part such, as carry
with them, in their own Nature, no visible necessary connexion, or
inconsistency with any other simple Ideas, whose co-existence with
them we would inform our selves about.
Locke Hum IV, 3, §10, p. 544