1964. It was shown in various ways how spirits, from their life in the body, have acquired to themselves harmony from different sources, as from contradicting, from plotting against conjugial love, from attempting to destroy it, and especially from various abominable things in which they take such delight that they can conceive of nothing more exquisite. These delights of theirs were occasionally communicated, as I have elsewhere remarked, being made known at one time by means of [opposite] tediums and unpleasantnesses, at another by the confessions of those who had been in them, thus evincing by lively experience in innumerable instances that their life is in acquired pleasures. Thus there are as many diversities of life as there are, and have been, and will be men and spirits, and if they were to be multiplied to eternity, still the diversities would be distinct; which was also confirmed by its being manifest from their faces and speech alone. - 1748, May 16.