Whatever is a motive, in this sense, must be something that is extant in the view or apprehension of the understanding, or perceiving faculty. Nothing can induce or invite the mind to will or act anything, any further than it is perceived, or is some way or other in the mind’s view; for what is wholly unperceived, and perfectly out of the mind’s view, can’t affect the mind at all. ’Tis most evident, that nothing is in the mind, or reaches it, or takes any hold of it, any otherwise than as it is perceived