《Tetrabiblos》The New Moon Of The YearClaudius Ptolemy（Ashmand 英譯 1822）
And the point of the vernal equinox has been consequently designated by them as the beginning of the year; because, from that time, the duration of the day begins to exceed that of the night, and because the season then produced partakes highly of moisture, which is always a predominant quality in all incipient generation and growth.
段落 tetra-2-thenewmoon-3public-domain (Ashmand 1822)
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