I. By that which is self-caused, I mean that of which the essence involves existence, or that of which the nature is only conceivable as existent. II. A thing is called finite after its kind, when it can be limited by ather thing of the same nature; for instance, a body is called finite because we always conceive ather greater body. So, also, a thought is limited by ather thought, but a body is t limited by thought, r a thought by body.