— 117 —
      §23. If it shall be demanded then, When a Man begins to have any
Ideas? I think, the true Answer is, When he first has any Sensation.
For since there appear not to be any Ideas in the Mind, before the
Senses have conveyed any in, I conceive that Ideas in the Under-
standing, are coeval with Sensation; which is such an Impression or
Motion, made in some part of the Body, as produces some Per-
ception in the Understanding. ’Tis about these Impressions made
on our Senses by outward Objects, that the Mind seems first to
employ it self in such Operations as we call Perception, Remembring,
Consideration, Reasoning, etc.
Locke Hum II, 1, §23, p. 117