19. Powers are relations, not agents.
I grant, that this or that actual thought may be the occasion of volition, or
exercising the power a man has to choose; or the actual choice of the mind, the cause of actual thinking on this or
that thing: as the actual singing of such a tune may be the cause of dancing such a dance, and the actual dancing of
such a dance the occasion of singing such a tune. But in all these it is not one power that operates on another: but
it is the mind that operates, and exerts these powers; it is the man that does the action; it is the agent that has
power, or is able to do. For powers are relations, not agents: and that which has the power or not the power to
operate, is that alone which is or is not free, and not the power itself For freedom, or not freedom, can belong to
nothing but what has or has not a power to act.
