3422. CONCERNING THE IDEAS OR SPIRITS. By means of a single tacit idea, it could be represented to spirits, what is the nature of the idea of inferior spirits, the nature of [the idea] of angelic spirits, also [that] of angels, merely by their perceiving in idea, that the interiors of an [the] idea belong to angelic spirits and their interiors belong to angels: and it was at the same time said that this, which is done and perceived in a moment, cannot be explained to man in many pages: and still would not be perceived, yea, because he has no perception what is an idea, still less what is inward or written ideas, for he supposes all things to be simple: for thus do corporal men conclude their ideas [to be]. - 1748, October 24.