In the book of Proverbs it is either an aphorism (x.-xxii.) or a discourse (i.-ix., xxiii.
Aids to Reflection, Aphorism 2, Comment.
Under the former head it is pointed out (i.) that the fundamental principle of Locke's Essay, that all our ideas are product of sensation and reflection, is briefly stated in the first aphorism of the Novum Organum, and (ii.) that the whole atmosphere of that treatise is characteristic of the Essay.