6814. They are averse to verbal speech because it is material, and therefore I could talk with them no otherwise than by a kind of active thought. Their memory, being of real things, and not of purely material images, supplies the thought with its objects more closely; for the thought which is above the imagination requires for its objects things abstracted from what is material. But in spite of this, the spirits of Mercury excel but little in the faculty of judgment. They are not delighted with matters that belong to judgment and to conclusions from thoughts; for bare knowledges are their delight.