《Tetrabiblos》That Prescience Is UsefulClaudius Ptolemy（Ashmand 英譯 1822）
But, by means of the science called by them Medical Mathematics, they combined with the power of prognostication the concurrent secondary influence arising out of the institutions and courses of nature, as well as the contrary influence which might be procured out of nature’s variety; and by means of these they rendered the indicated agency useful and advantageous: since their astronomy pointed out to them the kind of temperament liable to be acted upon, as well as the events about to proceed from the Ambient, and the peculiar influence of those events, while their medical skill made them acquainted with everything suitable or unsuitable to each of the effects to be procured.
段落 tetra-1-thatpresci-43public-domain (Ashmand 1822)
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