《Tetrabiblos》Otherwise Called, The Fruit Of His Four BooksClaudius Ptolemy（Ashmand 英譯 1822）
XLII. Should a disease begin when the Moon may be in a sign occupied at the birth by some malefic, or in quartile or opposition to any such sign, such disease will be most severe; and if the malefic also behold the said sign, it will be dangerous.
段落 tetra-4-otherwisec-42public-domain (Ashmand 1822)
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