Ptolemy’s theory of the universe held that the earth was at its centre. All other celestial objects – including the sun – rotated around it. It was, of course, nonsense. Aristarchus had more than 200 years earlier come up with a heliocentric model of the solar system. And much later Copernicus came along with his far superior system. Luckily, he died before anyone could be offended by his theory. Galileo, a supporter of Copernicanism, was not so fortunate, ending up under house arrest under suspicion of heresy.
托勒密(Ptolemy)的宇宙论认为,地球是宇宙的中心。所有其他天体——包括太阳——都围绕着地球旋转。这无疑是胡言乱语。阿里斯塔克斯(Aristarchus)比托勒密早两百多年提出了太阳系日心说理论。很久之后,哥白尼(Copernicus)提出了更加完善的日心说。所幸的是,他在自己的理论得罪其他人之前就告别了人世。而哥白尼学说的支持者伽利略(Galileo)就没有那么幸运了,由于被怀疑提出异端邪说,他在软禁中终其一生。