《Tetrabiblos》The New Moon Of The YearClaudius Ptolemy（Ashmand 英譯 1822）
In every annual revolution made by the Sun, the first new Moon of the year is to be considered as the point of the commencement of his circuit; this is evident not only from its denomination, but from its virtue also.[98] The case stands thus: In the ecliptic, which, as circle, has in fact no actual or definite beginning, the two equinoctial and the two tropical points, marked by the equator and the tropical circles, are reasonably assumed as beginnings.
段落 tetra-2-thenewmoon-1public-domain (Ashmand 1822)
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