— 166 —
The abstrusest Ideas from the two Sources.       §8. If we will trace the progress of our Minds, and with atten-
tion observe how it repeats, adds together, and unites its simple
Ideas received from Sensation or Reflection, it will lead us farther
than at first, perhaps, we should have imagined. And, I believe, we
shall find, if we warily observe the Originals of our Notions, that
even the most abstruse Ideas, how remote soever they may seem from
Sense, or from any operation of our own Minds, are yet only such,
as the Understanding frames to it self, by repeating and joining
together Ideas, that it had either from Objects of Sense, or from its
own operations about them: So that those even large and abstract
Ideas are derived from Sensation, or Reflection, being no other than what
the Mind, by the ordinary use of its own Faculties, employed about
Ideas, received from Objects of Sense, or from the Operations it
observes in it self about them, may, and does attain unto. This I
shall endeavour to shew in the Ideas we have of Space, Time, and
Infinity, and some few other, that seem the most remote from those
Originals.
Locke Hum II, 12, §8, p. 166