— 642 —
But to compare clear complete Ideas under steady Names.
      §6. But since the Knowledge of the Certainty of Principles, as
well as of all other Truths, depends only upon the perception, we
have, of the Agreement, or Disagreement of our Ideas, the way to
improve our Knowledge, is not, I am sure, blindly, and with an implicit
Faith, to receive and swallow Principles; but is, I think, to get and
fix in our Minds clear, distinct, and complete Ideas, as far as they are to
be had, and annex to them proper and constant Names. And thus, perhaps,
without any other Principles, but barely considering those Ideas,
and by comparing them one with another, finding their Agreement, and
Disagreement, and their several Relations and Habitudes; we shall
get more true and clear Knowledge, by the conduct of this one
— 643 —
Rule, than by taking up Principles, and thereby putting our Minds
into the disposal of others.
Locke Hum IV, 12, §6, pp. 642-643