《Numbers: Their Occult Power and Mystic Virtue》數字的神秘象徵 (Occult Power of Numbers)William Wynn Westcott (1890)
Among other curious problems and speculations the Pythagorean philosophers attempted to prove that offspring born at the full term, 9 months, or at 7 months, were viable, i.e.
段落 westcott-172public-domain (1890)
↗ 開啟公有領域原文（Wikisource）此段為公有領域典籍逐字擷取，零 AI 生成；原文亦存繁化前底本，可逐字審計。我們寧可少引、不可錯引——驗不過的引文一律捨棄。