《Tetrabiblos》Book 3Claudius Ptolemy（Ashmand 英譯 1822）
In regard to general events, the dates of origin and commencement are many and various; for all general events cannot be traced to one origin, neither is their origin always considered by means of the matter subjected to their operation, for it may be also established by circumstances occurring in the Ambient and presenting the causation.
段落 tetra-3-ch-4public-domain (Ashmand 1822)
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