278. The acts of the body, viewed by the eye, appear thus simple and uniform, as do seeds, fruits and eggs in external form, or as nuts and almonds in their kernels, yet they contain in themselves all the prior things from which they exist, because every outmost thing is covered around, and by this means kept distinct from prior things. Each degree also is surrounded by a covering, and by this means kept distinct from another degree. Consequently, things of the first degree are not known from the second degree, nor are those of that degree known by the third degree. Take an example. The love of the will which is the first degree of the mind is not known in the wisdom of the understanding which is the second degree of the mind, except by a certain enjoyment of thinking of the matter. The first degree which, as has been said, is the love of the will, is not known in the knowledge of the memory, which is the third degree, except by a certain pleasure in knowing and speaking. It follows from these examples that a deed, which is an act of the body, includes all these things although in external form it appears simple and as one thing.