— 236 —
Will and Understanding, two Powers.       §5. This at least I think evident, That we find in our selves a
Power to begin or forbear, continue or end several actions of our
minds, and motions of our Bodies, barely by a thought or prefer-
ence of the mind ordering, or as it were commanding the doing or
not doing such or such a particular action. This Power which the
mind has, thus to order the consideration of any Idea, or the for-
bearing to consider it; or to prefer the motion of any part of the
body to its rest, and vice versâ in any particular instance is that which
we call the Will. The actual exercise of that power, by directing any
particular action, or its forbearance is that which we call Volition or
Willing. The forbearance or performance of that action, consequent
to such order or command of the mind is called Voluntary. And
whatsoever action is performed without such a thought of the mind
is called Involuntary. The power of Perception is that which we call
the Understanding. Perception, which we make the act of the
Understanding, is of three sorts: 1. The Perception of Ideas in our
Minds. 2. The Perception of the signification of Signs. 3. The
Perception of the Connexion or Repugnancy, Agreement or Dis-
agreement, that there is between any of our Ideas. All these are
attributed to the Understanding, or perceptive Power, though it be
the two latter only that use allows us to say we understand.
Locke Hum II, 21, §5, p. 236