What now can be _Objected_ against me? shall I say, that I am so made by _Nature_, as to be often _deceived_? No; For I now Know that I cannot be _deceived_ in those Things, which I _clearly_ Understand. Shall I say, that at other times I have esteem’d many Things _True_ and _Certain_, which afterwards I found to be _falsities_? No; for I perceived none of those things _clearly_ and _distinctly_, but being Ignorant of this _Rule_ of _Truth_, I took them up for Reasons, which Reasons I afterward found to be _Weak_. What then can be said? Shall, I say, (as lately I objected) that Perhaps I am _asleep_, and that what I now think of is no more _True_, then the _Dreams_ of People _asleep_? But this it self _moves_ not my Opinion; for certainly tho I were _asleep_, if any thing appear’d _evident_ to my Understanding, ’twould be _True_. And Thus I Plainly see, that the _Certainty_ and _Truth_ of all _Science_ Depends on the _Knowledge_ of the _True God_, so that before I had _Known Him_, I did _Know nothing_; But now many things both of _God_ himself, and of other _Intellectual Things_, as also of _Corporeal nature_, which is the _Object_ of _Mathematicks_, may be _Plainly Known_ and _Certain_ to me. MEDITAT. VI. _~Of Corporeal Beings~, and Their ~Existence~: As Also of the Real Difference, Between ~Mind~ and ~Body~._ It now remains that I examine whether any _Corporeal Beings_ do _Exist_; And already I know that (as they are the _Object_ of _Pure Mathematicks_) they _May_ (at least) _Exist_, for I _clearly_ and _distinctly_ perceive them; and doubtless _God_ is _able_ to _make_, whatever I am _able_ to _perceive_, and I never Judged any thing to be _beyond_ his _Power_, but what was _Repugnant_ to a _distinct perception_. Moreover, such _Material Beings seem_ to _Exist_ from the _faculty_ of _Imagination_, which I find my self make use of, when I am conversant about them: for if I attentively Consider what _Imagination_ is, ’twill appear to be only _a certain Application of our Cognoscitive or knowing Faculty to a Body or Object that is before it_; and if it be _before it_, It must _Exist_.