《Tetrabiblos》Mutual Configurations Of The SignsClaudius Ptolemy（Ashmand 英譯 1822）
The opposition and quartile are considered to be discordant, because they are configurations made between signs not of the same kind, but of different natures and sexes.[45] [45] From the tenor of this chapter it was formerly doubted whether the author intended to admit in his theory only zodiacal aspects, and to reject those which are called mundane; but Placidus has referred to the 4th Chapter of the 8th Book of the Almagest (which will be found in the Appendix to this translation) to prove that Ptolemy distinctly taught two kinds of aspect; one in the zodiac and one in the world.
段落 tetra-1-mutualconf-7public-domain (Ashmand 1822)
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